/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:34:41,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:34:41,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:34:41,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:34:41,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:34:41,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:34:41,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:34:41,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:34:41,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:34:41,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:34:41,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:34:41,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:34:41,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:34:41,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:34:41,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:34:41,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:34:41,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:34:41,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:34:41,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:34:41,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:34:41,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:34:41,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:34:41,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:34:41,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:34:41,806 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:34:41,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-06-05 00:34:41,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956373094/a78a31e3333a4dc6997925efc9b1c014/FLAGc17cd20cd [2021-06-05 00:34:42,354 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:34:42,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-06-05 00:34:42,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956373094/a78a31e3333a4dc6997925efc9b1c014/FLAGc17cd20cd [2021-06-05 00:34:42,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956373094/a78a31e3333a4dc6997925efc9b1c014 [2021-06-05 00:34:42,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:34:42,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:34:42,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:34:42,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:34:42,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:34:42,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15671f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:42, skipping insertion in model container [2021-06-05 00:34:42,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:42" (1/1) ... [2021-06-05 00:34:42,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:34:42,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:34:42,803 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 00:34:43,102 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-06-05 00:34:43,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:34:43,119 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:34:43,126 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 00:34:43,143 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-06-05 00:34:43,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:34:43,312 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:34:43,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43 WrapperNode [2021-06-05 00:34:43,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:34:43,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:34:43,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:34:43,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:34:43,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:34:43,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:34:43,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:34:43,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:34:43,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... [2021-06-05 00:34:43,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:34:43,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:34:43,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:34:43,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:34:43,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:34:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:34:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:34:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:34:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 00:34:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:34:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:34:43,446 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:34:43,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:34:43,898 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-06-05 00:34:43,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:34:43 BoogieIcfgContainer [2021-06-05 00:34:43,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:34:43,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:34:43,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:34:43,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:34:43,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:34:42" (1/3) ... [2021-06-05 00:34:43,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79de89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:34:43, skipping insertion in model container [2021-06-05 00:34:43,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:43" (2/3) ... [2021-06-05 00:34:43,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79de89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:34:43, skipping insertion in model container [2021-06-05 00:34:43,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:34:43" (3/3) ... [2021-06-05 00:34:43,905 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-06-05 00:34:43,909 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:34:43,909 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:34:43,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 00:34:43,910 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:34:43,941 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,941 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,948 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,949 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,950 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,953 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,954 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,954 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,956 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,956 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,957 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,957 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,961 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,962 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,963 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,963 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,964 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,964 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,964 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,964 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,964 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,965 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,967 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:34:43,975 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 00:34:43,990 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 00:34:44,010 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:34:44,010 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:34:44,010 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:34:44,011 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:34:44,011 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:34:44,011 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:34:44,011 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:34:44,011 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:34:44,023 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 143 transitions, 308 flow [2021-06-05 00:34:44,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 00:34:44,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:44,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:44,229 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:44,233 INFO L82 PathProgramCache]: Analyzing trace with hash 918719424, now seen corresponding path program 1 times [2021-06-05 00:34:44,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:44,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085629518] [2021-06-05 00:34:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:44,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:44,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085629518] [2021-06-05 00:34:44,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085629518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:44,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:44,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:44,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151073010] [2021-06-05 00:34:44,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:44,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:44,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:44,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:44,524 INFO L87 Difference]: Start difference. First operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:44,879 INFO L93 Difference]: Finished difference Result 6844 states and 18653 transitions. [2021-06-05 00:34:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 00:34:44,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-06-05 00:34:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:44,918 INFO L225 Difference]: With dead ends: 6844 [2021-06-05 00:34:44,918 INFO L226 Difference]: Without dead ends: 5725 [2021-06-05 00:34:44,919 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 88.7ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:34:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2021-06-05 00:34:45,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4445. [2021-06-05 00:34:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4440 states have (on average 2.713963963963964) internal successors, (12050), 4444 states have internal predecessors, (12050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 12050 transitions. [2021-06-05 00:34:45,076 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 12050 transitions. Word has length 48 [2021-06-05 00:34:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:45,076 INFO L482 AbstractCegarLoop]: Abstraction has 4445 states and 12050 transitions. [2021-06-05 00:34:45,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 12050 transitions. [2021-06-05 00:34:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 00:34:45,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:45,079 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:45,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:34:45,079 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:45,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:45,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1316640901, now seen corresponding path program 1 times [2021-06-05 00:34:45,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:45,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469174526] [2021-06-05 00:34:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:45,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:45,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469174526] [2021-06-05 00:34:45,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469174526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:45,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:45,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:34:45,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422081122] [2021-06-05 00:34:45,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:34:45,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:45,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:34:45,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:34:45,151 INFO L87 Difference]: Start difference. First operand 4445 states and 12050 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:45,344 INFO L93 Difference]: Finished difference Result 6161 states and 16560 transitions. [2021-06-05 00:34:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:34:45,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 00:34:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:45,361 INFO L225 Difference]: With dead ends: 6161 [2021-06-05 00:34:45,362 INFO L226 Difference]: Without dead ends: 5231 [2021-06-05 00:34:45,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 49.7ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:34:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2021-06-05 00:34:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5061. [2021-06-05 00:34:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5061 states, 5057 states have (on average 2.716630413288511) internal successors, (13738), 5060 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5061 states to 5061 states and 13738 transitions. [2021-06-05 00:34:45,541 INFO L78 Accepts]: Start accepts. Automaton has 5061 states and 13738 transitions. Word has length 54 [2021-06-05 00:34:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:45,543 INFO L482 AbstractCegarLoop]: Abstraction has 5061 states and 13738 transitions. [2021-06-05 00:34:45,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5061 states and 13738 transitions. [2021-06-05 00:34:45,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:34:45,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:45,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:45,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:34:45,551 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:45,557 INFO L82 PathProgramCache]: Analyzing trace with hash 612799479, now seen corresponding path program 1 times [2021-06-05 00:34:45,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:45,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779054619] [2021-06-05 00:34:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:45,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:45,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779054619] [2021-06-05 00:34:45,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779054619] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:45,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:45,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 00:34:45,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675153469] [2021-06-05 00:34:45,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 00:34:45,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:45,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 00:34:45,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 00:34:45,671 INFO L87 Difference]: Start difference. First operand 5061 states and 13738 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:45,718 INFO L93 Difference]: Finished difference Result 1928 states and 5048 transitions. [2021-06-05 00:34:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 00:34:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-05 00:34:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:45,724 INFO L225 Difference]: With dead ends: 1928 [2021-06-05 00:34:45,724 INFO L226 Difference]: Without dead ends: 1928 [2021-06-05 00:34:45,725 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:34:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-06-05 00:34:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2021-06-05 00:34:45,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1926 states have (on average 2.6209761163032192) internal successors, (5048), 1927 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5048 transitions. [2021-06-05 00:34:45,761 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5048 transitions. Word has length 66 [2021-06-05 00:34:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:45,761 INFO L482 AbstractCegarLoop]: Abstraction has 1928 states and 5048 transitions. [2021-06-05 00:34:45,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5048 transitions. [2021-06-05 00:34:45,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:34:45,765 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:45,765 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:45,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:34:45,765 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:45,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:45,766 INFO L82 PathProgramCache]: Analyzing trace with hash -240776193, now seen corresponding path program 1 times [2021-06-05 00:34:45,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:45,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21838262] [2021-06-05 00:34:45,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:46,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:46,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21838262] [2021-06-05 00:34:46,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21838262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:46,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:46,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:46,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050368864] [2021-06-05 00:34:46,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:46,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:46,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:46,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:46,267 INFO L87 Difference]: Start difference. First operand 1928 states and 5048 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:47,727 INFO L93 Difference]: Finished difference Result 1986 states and 5156 transitions. [2021-06-05 00:34:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:34:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:34:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:47,733 INFO L225 Difference]: With dead ends: 1986 [2021-06-05 00:34:47,733 INFO L226 Difference]: Without dead ends: 1986 [2021-06-05 00:34:47,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1092.8ms TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:34:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2021-06-05 00:34:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1953. [2021-06-05 00:34:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1951 states have (on average 2.610456176319836) internal successors, (5093), 1952 states have internal predecessors, (5093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 5093 transitions. [2021-06-05 00:34:47,770 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 5093 transitions. Word has length 94 [2021-06-05 00:34:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:47,770 INFO L482 AbstractCegarLoop]: Abstraction has 1953 states and 5093 transitions. [2021-06-05 00:34:47,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 5093 transitions. [2021-06-05 00:34:47,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:34:47,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:47,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:47,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:34:47,775 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:47,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1458799697, now seen corresponding path program 1 times [2021-06-05 00:34:47,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:47,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246784929] [2021-06-05 00:34:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:48,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:48,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246784929] [2021-06-05 00:34:48,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246784929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:48,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:48,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:34:48,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472224766] [2021-06-05 00:34:48,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:34:48,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:48,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:34:48,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:34:48,267 INFO L87 Difference]: Start difference. First operand 1953 states and 5093 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:49,487 INFO L93 Difference]: Finished difference Result 3181 states and 8005 transitions. [2021-06-05 00:34:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:34:49,487 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:34:49,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:49,508 INFO L225 Difference]: With dead ends: 3181 [2021-06-05 00:34:49,508 INFO L226 Difference]: Without dead ends: 3181 [2021-06-05 00:34:49,509 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1022.0ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:34:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-06-05 00:34:49,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2250. [2021-06-05 00:34:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 2248 states have (on average 2.5604982206405693) internal successors, (5756), 2249 states have internal predecessors, (5756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:49,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 5756 transitions. [2021-06-05 00:34:49,560 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 5756 transitions. Word has length 94 [2021-06-05 00:34:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:49,561 INFO L482 AbstractCegarLoop]: Abstraction has 2250 states and 5756 transitions. [2021-06-05 00:34:49,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 5756 transitions. [2021-06-05 00:34:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:34:49,567 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:49,567 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:49,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:34:49,568 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:49,568 INFO L82 PathProgramCache]: Analyzing trace with hash 608810679, now seen corresponding path program 2 times [2021-06-05 00:34:49,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:49,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038792984] [2021-06-05 00:34:49,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:50,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:50,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038792984] [2021-06-05 00:34:50,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038792984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:50,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:50,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:34:50,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10649732] [2021-06-05 00:34:50,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:34:50,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:50,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:34:50,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:34:50,385 INFO L87 Difference]: Start difference. First operand 2250 states and 5756 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:51,404 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:34:51,684 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:34:51,857 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:34:52,050 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:34:52,281 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:34:52,505 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:34:52,689 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:34:52,920 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:34:53,255 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:34:53,522 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:34:53,714 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:34:53,946 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:34:54,121 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:34:54,327 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:34:54,762 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:34:55,081 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:34:55,405 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:34:55,732 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:34:55,944 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:34:56,068 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:34:56,268 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:34:56,395 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:34:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:34:56,401 INFO L93 Difference]: Finished difference Result 5114 states and 12603 transitions. [2021-06-05 00:34:56,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 00:34:56,401 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:34:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:34:56,433 INFO L225 Difference]: With dead ends: 5114 [2021-06-05 00:34:56,433 INFO L226 Difference]: Without dead ends: 5114 [2021-06-05 00:34:56,434 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 5393.5ms TimeCoverageRelationStatistics Valid=1020, Invalid=2640, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:34:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2021-06-05 00:34:56,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 2972. [2021-06-05 00:34:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2970 states have (on average 2.594612794612795) internal successors, (7706), 2971 states have internal predecessors, (7706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:56,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 7706 transitions. [2021-06-05 00:34:56,531 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 7706 transitions. Word has length 94 [2021-06-05 00:34:56,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:34:56,531 INFO L482 AbstractCegarLoop]: Abstraction has 2972 states and 7706 transitions. [2021-06-05 00:34:56,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:56,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 7706 transitions. [2021-06-05 00:34:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:34:56,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:34:56,535 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:34:56,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:34:56,536 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:34:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:34:56,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1809812065, now seen corresponding path program 3 times [2021-06-05 00:34:56,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:34:56,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053103863] [2021-06-05 00:34:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:34:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:34:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:34:57,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:34:57,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053103863] [2021-06-05 00:34:57,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053103863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:34:57,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:34:57,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:34:57,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669743125] [2021-06-05 00:34:57,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:34:57,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:34:57,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:34:57,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:34:57,229 INFO L87 Difference]: Start difference. First operand 2972 states and 7706 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:34:58,225 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:34:58,524 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:34:58,666 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:34:58,857 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:34:59,067 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:34:59,268 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:34:59,607 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:34:59,739 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:34:59,893 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:35:00,079 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:35:00,266 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:00,492 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:35:00,704 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:35:00,929 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:35:01,354 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:35:01,488 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:35:01,712 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:35:01,886 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:35:02,100 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:35:02,237 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:02,411 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:02,645 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:35:02,976 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:35:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:03,122 INFO L93 Difference]: Finished difference Result 5535 states and 13421 transitions. [2021-06-05 00:35:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:35:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:03,134 INFO L225 Difference]: With dead ends: 5535 [2021-06-05 00:35:03,135 INFO L226 Difference]: Without dead ends: 5535 [2021-06-05 00:35:03,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 5281.3ms TimeCoverageRelationStatistics Valid=968, Invalid=2572, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:35:03,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2021-06-05 00:35:03,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 2979. [2021-06-05 00:35:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2977 states have (on average 2.5935505542492443) internal successors, (7721), 2978 states have internal predecessors, (7721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7721 transitions. [2021-06-05 00:35:03,256 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7721 transitions. Word has length 94 [2021-06-05 00:35:03,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:03,256 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7721 transitions. [2021-06-05 00:35:03,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7721 transitions. [2021-06-05 00:35:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:03,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:03,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:03,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:35:03,274 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:03,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:03,274 INFO L82 PathProgramCache]: Analyzing trace with hash -184622153, now seen corresponding path program 4 times [2021-06-05 00:35:03,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:03,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350840675] [2021-06-05 00:35:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:04,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:04,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350840675] [2021-06-05 00:35:04,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350840675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:04,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:04,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:04,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260952953] [2021-06-05 00:35:04,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:04,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:04,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:04,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:04,056 INFO L87 Difference]: Start difference. First operand 2979 states and 7721 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,587 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-06-05 00:35:05,144 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:35:05,277 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:35:05,515 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:35:05,688 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:35:05,913 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:35:06,316 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:06,576 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:06,739 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:35:06,935 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:35:07,179 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:07,454 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:35:07,648 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:35:07,865 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:35:08,251 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:35:08,378 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:35:08,541 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:35:08,854 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:35:08,983 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:09,131 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:09,328 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:35:09,470 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:35:09,660 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:35:09,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:09,788 INFO L93 Difference]: Finished difference Result 5646 states and 13664 transitions. [2021-06-05 00:35:09,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:35:09,789 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:09,795 INFO L225 Difference]: With dead ends: 5646 [2021-06-05 00:35:09,795 INFO L226 Difference]: Without dead ends: 5646 [2021-06-05 00:35:09,796 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 5222.6ms TimeCoverageRelationStatistics Valid=918, Invalid=2504, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:35:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-06-05 00:35:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 2993. [2021-06-05 00:35:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2991 states have (on average 2.5914409896355735) internal successors, (7751), 2992 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 7751 transitions. [2021-06-05 00:35:09,855 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 7751 transitions. Word has length 94 [2021-06-05 00:35:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:09,856 INFO L482 AbstractCegarLoop]: Abstraction has 2993 states and 7751 transitions. [2021-06-05 00:35:09,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 7751 transitions. [2021-06-05 00:35:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:09,859 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:09,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:09,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:35:09,860 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1732609481, now seen corresponding path program 5 times [2021-06-05 00:35:09,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:09,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225861980] [2021-06-05 00:35:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:10,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:10,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225861980] [2021-06-05 00:35:10,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225861980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:10,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:10,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:10,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233239940] [2021-06-05 00:35:10,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:10,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:10,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:10,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:10,502 INFO L87 Difference]: Start difference. First operand 2993 states and 7751 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:11,509 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:35:11,640 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:35:11,813 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:35:12,255 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:12,390 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:12,524 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:35:12,692 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:12,890 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:35:13,127 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:35:13,346 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:13,558 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:35:13,758 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:35:13,990 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:35:14,412 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:35:14,554 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:35:14,713 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:35:14,900 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:35:15,087 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:35:15,225 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:15,373 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:15,535 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:35:15,677 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:35:15,836 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:35:15,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:15,964 INFO L93 Difference]: Finished difference Result 5757 states and 13907 transitions. [2021-06-05 00:35:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:35:15,965 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:15,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:15,971 INFO L225 Difference]: With dead ends: 5757 [2021-06-05 00:35:15,971 INFO L226 Difference]: Without dead ends: 5757 [2021-06-05 00:35:15,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 4818.9ms TimeCoverageRelationStatistics Valid=870, Invalid=2436, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:35:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2021-06-05 00:35:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 3000. [2021-06-05 00:35:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 2998 states have (on average 2.590393595730487) internal successors, (7766), 2999 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 7766 transitions. [2021-06-05 00:35:16,019 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 7766 transitions. Word has length 94 [2021-06-05 00:35:16,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:16,020 INFO L482 AbstractCegarLoop]: Abstraction has 3000 states and 7766 transitions. [2021-06-05 00:35:16,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:16,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 7766 transitions. [2021-06-05 00:35:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:16,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:16,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:16,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:35:16,024 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:16,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1417459553, now seen corresponding path program 6 times [2021-06-05 00:35:16,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:16,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998775973] [2021-06-05 00:35:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:16,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:16,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998775973] [2021-06-05 00:35:16,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998775973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:16,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:16,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:16,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571353976] [2021-06-05 00:35:16,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:16,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:16,670 INFO L87 Difference]: Start difference. First operand 3000 states and 7766 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,529 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:35:17,688 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:35:18,110 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:35:18,257 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:18,420 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:18,556 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:35:18,746 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:18,891 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:35:19,096 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:35:19,290 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:19,495 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:35:19,681 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:35:19,897 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:35:20,249 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:35:20,565 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:35:20,839 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:35:20,967 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:21,097 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:35:21,258 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:35:21,383 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:35:21,522 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:35:21,645 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:35:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:21,650 INFO L93 Difference]: Finished difference Result 5383 states and 13144 transitions. [2021-06-05 00:35:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:35:21,650 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:21,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:21,655 INFO L225 Difference]: With dead ends: 5383 [2021-06-05 00:35:21,655 INFO L226 Difference]: Without dead ends: 5383 [2021-06-05 00:35:21,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 4428.8ms TimeCoverageRelationStatistics Valid=824, Invalid=2368, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:35:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5383 states. [2021-06-05 00:35:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5383 to 3007. [2021-06-05 00:35:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3005 states have (on average 2.589351081530782) internal successors, (7781), 3006 states have internal predecessors, (7781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 7781 transitions. [2021-06-05 00:35:21,703 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 7781 transitions. Word has length 94 [2021-06-05 00:35:21,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:21,704 INFO L482 AbstractCegarLoop]: Abstraction has 3007 states and 7781 transitions. [2021-06-05 00:35:21,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 7781 transitions. [2021-06-05 00:35:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:21,707 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:21,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:21,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:35:21,708 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:21,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:21,708 INFO L82 PathProgramCache]: Analyzing trace with hash 488017371, now seen corresponding path program 2 times [2021-06-05 00:35:21,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:21,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857904865] [2021-06-05 00:35:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:22,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:22,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857904865] [2021-06-05 00:35:22,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857904865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:22,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:22,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:22,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732492019] [2021-06-05 00:35:22,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:22,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:22,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:22,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:22,385 INFO L87 Difference]: Start difference. First operand 3007 states and 7781 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:25,479 INFO L93 Difference]: Finished difference Result 4740 states and 12254 transitions. [2021-06-05 00:35:25,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 00:35:25,479 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:25,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:25,485 INFO L225 Difference]: With dead ends: 4740 [2021-06-05 00:35:25,485 INFO L226 Difference]: Without dead ends: 4740 [2021-06-05 00:35:25,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 2089.7ms TimeCoverageRelationStatistics Valid=1035, Invalid=3935, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 00:35:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2021-06-05 00:35:25,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4476. [2021-06-05 00:35:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4474 states have (on average 2.626285203397407) internal successors, (11750), 4475 states have internal predecessors, (11750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 11750 transitions. [2021-06-05 00:35:25,546 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 11750 transitions. Word has length 94 [2021-06-05 00:35:25,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:25,546 INFO L482 AbstractCegarLoop]: Abstraction has 4476 states and 11750 transitions. [2021-06-05 00:35:25,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 11750 transitions. [2021-06-05 00:35:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:25,552 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:25,552 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:25,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 00:35:25,552 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:25,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:25,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1712244349, now seen corresponding path program 7 times [2021-06-05 00:35:25,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:25,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592324116] [2021-06-05 00:35:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:25,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:25,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592324116] [2021-06-05 00:35:25,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592324116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:25,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:25,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:25,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46709631] [2021-06-05 00:35:25,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:25,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:25,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:25,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:25,902 INFO L87 Difference]: Start difference. First operand 4476 states and 11750 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:27,013 INFO L93 Difference]: Finished difference Result 5776 states and 14694 transitions. [2021-06-05 00:35:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 00:35:27,013 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:27,019 INFO L225 Difference]: With dead ends: 5776 [2021-06-05 00:35:27,019 INFO L226 Difference]: Without dead ends: 5776 [2021-06-05 00:35:27,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 968.6ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 00:35:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2021-06-05 00:35:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 4476. [2021-06-05 00:35:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4474 states have (on average 2.626285203397407) internal successors, (11750), 4475 states have internal predecessors, (11750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 11750 transitions. [2021-06-05 00:35:27,086 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 11750 transitions. Word has length 94 [2021-06-05 00:35:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:27,086 INFO L482 AbstractCegarLoop]: Abstraction has 4476 states and 11750 transitions. [2021-06-05 00:35:27,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 11750 transitions. [2021-06-05 00:35:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:27,092 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:27,092 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:27,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 00:35:27,092 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash -186806265, now seen corresponding path program 8 times [2021-06-05 00:35:27,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:27,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345365296] [2021-06-05 00:35:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:27,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:27,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345365296] [2021-06-05 00:35:27,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345365296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:27,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:27,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:27,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955598868] [2021-06-05 00:35:27,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:27,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:27,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:27,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:27,413 INFO L87 Difference]: Start difference. First operand 4476 states and 11750 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:28,589 INFO L93 Difference]: Finished difference Result 5682 states and 14305 transitions. [2021-06-05 00:35:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:28,589 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:28,594 INFO L225 Difference]: With dead ends: 5682 [2021-06-05 00:35:28,594 INFO L226 Difference]: Without dead ends: 5682 [2021-06-05 00:35:28,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 953.4ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5682 states. [2021-06-05 00:35:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5682 to 4426. [2021-06-05 00:35:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4426 states, 4424 states have (on average 2.625) internal successors, (11613), 4425 states have internal predecessors, (11613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 11613 transitions. [2021-06-05 00:35:28,660 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 11613 transitions. Word has length 94 [2021-06-05 00:35:28,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:28,660 INFO L482 AbstractCegarLoop]: Abstraction has 4426 states and 11613 transitions. [2021-06-05 00:35:28,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 11613 transitions. [2021-06-05 00:35:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:28,666 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:28,666 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:28,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 00:35:28,667 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:28,667 INFO L82 PathProgramCache]: Analyzing trace with hash -938424673, now seen corresponding path program 9 times [2021-06-05 00:35:28,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:28,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118817434] [2021-06-05 00:35:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:28,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:28,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118817434] [2021-06-05 00:35:28,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118817434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:28,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:28,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:28,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004105369] [2021-06-05 00:35:28,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:28,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:28,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:28,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:28,958 INFO L87 Difference]: Start difference. First operand 4426 states and 11613 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:30,075 INFO L93 Difference]: Finished difference Result 5571 states and 13935 transitions. [2021-06-05 00:35:30,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:30,075 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:30,079 INFO L225 Difference]: With dead ends: 5571 [2021-06-05 00:35:30,079 INFO L226 Difference]: Without dead ends: 5571 [2021-06-05 00:35:30,080 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 953.5ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2021-06-05 00:35:30,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 4376. [2021-06-05 00:35:30,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4374 states have (on average 2.6236854138088708) internal successors, (11476), 4375 states have internal predecessors, (11476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 11476 transitions. [2021-06-05 00:35:30,139 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 11476 transitions. Word has length 94 [2021-06-05 00:35:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:30,139 INFO L482 AbstractCegarLoop]: Abstraction has 4376 states and 11476 transitions. [2021-06-05 00:35:30,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 11476 transitions. [2021-06-05 00:35:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:30,145 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:30,145 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:30,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 00:35:30,145 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:30,145 INFO L82 PathProgramCache]: Analyzing trace with hash -356783737, now seen corresponding path program 10 times [2021-06-05 00:35:30,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:30,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010708151] [2021-06-05 00:35:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:30,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:30,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010708151] [2021-06-05 00:35:30,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010708151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:30,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:30,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:30,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878637451] [2021-06-05 00:35:30,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:30,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:30,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:30,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:30,431 INFO L87 Difference]: Start difference. First operand 4376 states and 11476 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:31,475 INFO L93 Difference]: Finished difference Result 5680 states and 14168 transitions. [2021-06-05 00:35:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:31,479 INFO L225 Difference]: With dead ends: 5680 [2021-06-05 00:35:31,479 INFO L226 Difference]: Without dead ends: 5680 [2021-06-05 00:35:31,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 903.3ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5680 states. [2021-06-05 00:35:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5680 to 4276. [2021-06-05 00:35:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.6209639681796912) internal successors, (11202), 4275 states have internal predecessors, (11202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11202 transitions. [2021-06-05 00:35:31,535 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11202 transitions. Word has length 94 [2021-06-05 00:35:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:31,535 INFO L482 AbstractCegarLoop]: Abstraction has 4276 states and 11202 transitions. [2021-06-05 00:35:31,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:31,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11202 transitions. [2021-06-05 00:35:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:31,540 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:31,540 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:31,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 00:35:31,540 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:31,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:31,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1061403897, now seen corresponding path program 11 times [2021-06-05 00:35:31,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:31,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428732507] [2021-06-05 00:35:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:31,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:31,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428732507] [2021-06-05 00:35:31,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428732507] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:31,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:31,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:31,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428474950] [2021-06-05 00:35:31,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:31,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:31,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:31,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:31,846 INFO L87 Difference]: Start difference. First operand 4276 states and 11202 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:32,769 INFO L93 Difference]: Finished difference Result 5700 states and 14172 transitions. [2021-06-05 00:35:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:32,769 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:32,774 INFO L225 Difference]: With dead ends: 5700 [2021-06-05 00:35:32,775 INFO L226 Difference]: Without dead ends: 5700 [2021-06-05 00:35:32,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 838.7ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-06-05 00:35:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4226. [2021-06-05 00:35:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4226 states, 4224 states have (on average 2.6195549242424243) internal successors, (11065), 4225 states have internal predecessors, (11065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4226 states to 4226 states and 11065 transitions. [2021-06-05 00:35:32,848 INFO L78 Accepts]: Start accepts. Automaton has 4226 states and 11065 transitions. Word has length 94 [2021-06-05 00:35:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:32,848 INFO L482 AbstractCegarLoop]: Abstraction has 4226 states and 11065 transitions. [2021-06-05 00:35:32,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4226 states and 11065 transitions. [2021-06-05 00:35:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:32,853 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:32,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:32,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 00:35:32,853 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:32,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1559630751, now seen corresponding path program 12 times [2021-06-05 00:35:32,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:32,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807828243] [2021-06-05 00:35:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:33,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:33,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807828243] [2021-06-05 00:35:33,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807828243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:33,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:33,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:35:33,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854175750] [2021-06-05 00:35:33,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:35:33,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:33,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:35:33,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:33,153 INFO L87 Difference]: Start difference. First operand 4226 states and 11065 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:34,088 INFO L93 Difference]: Finished difference Result 4943 states and 12513 transitions. [2021-06-05 00:35:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:34,089 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:34,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:34,093 INFO L225 Difference]: With dead ends: 4943 [2021-06-05 00:35:34,094 INFO L226 Difference]: Without dead ends: 4943 [2021-06-05 00:35:34,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 803.0ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:34,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2021-06-05 00:35:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 3936. [2021-06-05 00:35:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3936 states, 3934 states have (on average 2.6349771225216063) internal successors, (10366), 3935 states have internal predecessors, (10366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3936 states to 3936 states and 10366 transitions. [2021-06-05 00:35:34,149 INFO L78 Accepts]: Start accepts. Automaton has 3936 states and 10366 transitions. Word has length 94 [2021-06-05 00:35:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:34,149 INFO L482 AbstractCegarLoop]: Abstraction has 3936 states and 10366 transitions. [2021-06-05 00:35:34,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3936 states and 10366 transitions. [2021-06-05 00:35:34,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:34,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:34,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:34,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 00:35:34,154 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:34,155 INFO L82 PathProgramCache]: Analyzing trace with hash 891391129, now seen corresponding path program 13 times [2021-06-05 00:35:34,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:34,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865804604] [2021-06-05 00:35:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:34,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:34,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865804604] [2021-06-05 00:35:34,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865804604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:34,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:34,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:34,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096584904] [2021-06-05 00:35:34,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:34,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:34,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:34,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:34,780 INFO L87 Difference]: Start difference. First operand 3936 states and 10366 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:35,684 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 00:35:35,812 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:35:36,001 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 00:35:36,163 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:35:36,341 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:35:36,531 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:35:36,741 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:35:36,928 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:35:37,173 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:35:37,496 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:37,759 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:37,942 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:38,191 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:35:38,416 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-06-05 00:35:38,801 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-06-05 00:35:39,136 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2021-06-05 00:35:39,481 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2021-06-05 00:35:39,608 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:39,864 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2021-06-05 00:35:39,986 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:35:40,208 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:35:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:40,330 INFO L93 Difference]: Finished difference Result 6650 states and 16733 transitions. [2021-06-05 00:35:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:35:40,330 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:40,334 INFO L225 Difference]: With dead ends: 6650 [2021-06-05 00:35:40,335 INFO L226 Difference]: Without dead ends: 6650 [2021-06-05 00:35:40,335 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 5103.9ms TimeCoverageRelationStatistics Valid=1000, Invalid=2422, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:35:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2021-06-05 00:35:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 3765. [2021-06-05 00:35:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3763 states have (on average 2.6524049960138187) internal successors, (9981), 3764 states have internal predecessors, (9981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 9981 transitions. [2021-06-05 00:35:40,436 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 9981 transitions. Word has length 94 [2021-06-05 00:35:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:40,436 INFO L482 AbstractCegarLoop]: Abstraction has 3765 states and 9981 transitions. [2021-06-05 00:35:40,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 9981 transitions. [2021-06-05 00:35:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:40,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:40,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:40,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 00:35:40,441 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:40,442 INFO L82 PathProgramCache]: Analyzing trace with hash -409967847, now seen corresponding path program 3 times [2021-06-05 00:35:40,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:40,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067117740] [2021-06-05 00:35:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:41,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:41,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067117740] [2021-06-05 00:35:41,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067117740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:41,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:41,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:41,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480964266] [2021-06-05 00:35:41,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:41,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:41,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:41,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:41,077 INFO L87 Difference]: Start difference. First operand 3765 states and 9981 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:43,619 INFO L93 Difference]: Finished difference Result 5650 states and 14960 transitions. [2021-06-05 00:35:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:35:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:43,635 INFO L225 Difference]: With dead ends: 5650 [2021-06-05 00:35:43,635 INFO L226 Difference]: Without dead ends: 5650 [2021-06-05 00:35:43,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 2110.0ms TimeCoverageRelationStatistics Valid=771, Invalid=2889, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:35:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5650 states. [2021-06-05 00:35:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5650 to 4386. [2021-06-05 00:35:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 2.687956204379562) internal successors, (11784), 4385 states have internal predecessors, (11784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 11784 transitions. [2021-06-05 00:35:43,682 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 11784 transitions. Word has length 94 [2021-06-05 00:35:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:43,683 INFO L482 AbstractCegarLoop]: Abstraction has 4386 states and 11784 transitions. [2021-06-05 00:35:43,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 11784 transitions. [2021-06-05 00:35:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:43,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:43,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:43,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 00:35:43,688 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:43,689 INFO L82 PathProgramCache]: Analyzing trace with hash 814259131, now seen corresponding path program 14 times [2021-06-05 00:35:43,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:43,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279438483] [2021-06-05 00:35:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:44,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:44,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279438483] [2021-06-05 00:35:44,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279438483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:44,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:44,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:44,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170987944] [2021-06-05 00:35:44,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:44,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:44,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:44,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:44,306 INFO L87 Difference]: Start difference. First operand 4386 states and 11784 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:45,248 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 00:35:45,379 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:35:45,537 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 00:35:45,674 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:35:45,849 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:35:46,039 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:35:46,245 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:35:46,431 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:35:46,650 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:35:46,998 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:47,132 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 00:35:47,298 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:47,504 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:47,765 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:35:47,961 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:35:48,192 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:35:48,621 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:35:48,949 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:35:49,292 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-06-05 00:35:49,419 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:49,629 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:35:49,941 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:35:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:50,055 INFO L93 Difference]: Finished difference Result 6756 states and 17201 transitions. [2021-06-05 00:35:50,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:35:50,055 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:50,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:50,059 INFO L225 Difference]: With dead ends: 6756 [2021-06-05 00:35:50,059 INFO L226 Difference]: Without dead ends: 6756 [2021-06-05 00:35:50,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 5176.9ms TimeCoverageRelationStatistics Valid=994, Invalid=2546, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:35:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2021-06-05 00:35:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 4314. [2021-06-05 00:35:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4314 states, 4312 states have (on average 2.6827458256029684) internal successors, (11568), 4313 states have internal predecessors, (11568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 11568 transitions. [2021-06-05 00:35:50,122 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 11568 transitions. Word has length 94 [2021-06-05 00:35:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:50,123 INFO L482 AbstractCegarLoop]: Abstraction has 4314 states and 11568 transitions. [2021-06-05 00:35:50,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 11568 transitions. [2021-06-05 00:35:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:50,127 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:50,127 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:50,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 00:35:50,127 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:50,128 INFO L82 PathProgramCache]: Analyzing trace with hash -985219549, now seen corresponding path program 15 times [2021-06-05 00:35:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:50,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272212622] [2021-06-05 00:35:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:50,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:50,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272212622] [2021-06-05 00:35:50,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272212622] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:50,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:50,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:50,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543360927] [2021-06-05 00:35:50,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:50,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:50,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:50,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:50,764 INFO L87 Difference]: Start difference. First operand 4314 states and 11568 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,672 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 00:35:51,945 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 00:35:52,078 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:35:52,260 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:35:52,459 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:35:52,665 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:35:53,016 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:53,272 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:53,454 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:53,639 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:35:53,845 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:35:54,023 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:35:54,251 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 00:35:54,649 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 00:35:54,940 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:35:55,248 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:35:55,528 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:35:55,708 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 00:35:56,003 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:35:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:56,117 INFO L93 Difference]: Finished difference Result 7994 states and 20201 transitions. [2021-06-05 00:35:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:35:56,118 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:35:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:56,123 INFO L225 Difference]: With dead ends: 7994 [2021-06-05 00:35:56,123 INFO L226 Difference]: Without dead ends: 7994 [2021-06-05 00:35:56,124 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 4831.2ms TimeCoverageRelationStatistics Valid=975, Invalid=2565, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:35:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2021-06-05 00:35:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 4242. [2021-06-05 00:35:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4242 states, 4240 states have (on average 2.677358490566038) internal successors, (11352), 4241 states have internal predecessors, (11352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 11352 transitions. [2021-06-05 00:35:56,184 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 11352 transitions. Word has length 94 [2021-06-05 00:35:56,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:56,184 INFO L482 AbstractCegarLoop]: Abstraction has 4242 states and 11352 transitions. [2021-06-05 00:35:56,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 11352 transitions. [2021-06-05 00:35:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:35:56,188 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:56,188 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:56,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 00:35:56,188 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:35:56,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:56,189 INFO L82 PathProgramCache]: Analyzing trace with hash 781832763, now seen corresponding path program 16 times [2021-06-05 00:35:56,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:56,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672629854] [2021-06-05 00:35:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:56,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:56,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672629854] [2021-06-05 00:35:56,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672629854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:56,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:56,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:35:56,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545009908] [2021-06-05 00:35:56,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:35:56,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:56,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:35:56,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:35:56,766 INFO L87 Difference]: Start difference. First operand 4242 states and 11352 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:57,637 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 00:35:57,909 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 00:35:58,041 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:35:58,210 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:35:58,574 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:35:58,836 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:35:58,985 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:35:59,166 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:35:59,353 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:35:59,557 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:35:59,730 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:35:59,954 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 00:36:00,316 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-06-05 00:36:00,582 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:00,886 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:01,151 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:36:01,314 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:36:01,588 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:01,701 INFO L93 Difference]: Finished difference Result 8111 states and 20477 transitions. [2021-06-05 00:36:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:36:01,702 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:01,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:01,707 INFO L225 Difference]: With dead ends: 8111 [2021-06-05 00:36:01,707 INFO L226 Difference]: Without dead ends: 8111 [2021-06-05 00:36:01,708 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 4520.8ms TimeCoverageRelationStatistics Valid=925, Invalid=2497, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:36:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2021-06-05 00:36:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 4098. [2021-06-05 00:36:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4096 states have (on average 2.666015625) internal successors, (10920), 4097 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 10920 transitions. [2021-06-05 00:36:01,766 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 10920 transitions. Word has length 94 [2021-06-05 00:36:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:01,767 INFO L482 AbstractCegarLoop]: Abstraction has 4098 states and 10920 transitions. [2021-06-05 00:36:01,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 10920 transitions. [2021-06-05 00:36:01,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:01,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:01,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:01,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 00:36:01,770 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:01,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1052178245, now seen corresponding path program 17 times [2021-06-05 00:36:01,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:01,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497862548] [2021-06-05 00:36:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:02,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:02,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497862548] [2021-06-05 00:36:02,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497862548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:02,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:02,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:02,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818862933] [2021-06-05 00:36:02,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:02,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:02,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:02,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:02,356 INFO L87 Difference]: Start difference. First operand 4098 states and 10920 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:03,250 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-06-05 00:36:03,522 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:03,877 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 00:36:04,003 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:36:04,252 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:36:04,392 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:36:04,581 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:04,779 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:36:04,985 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:36:05,160 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:36:05,383 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 00:36:05,729 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:36:05,982 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:36:06,252 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:06,503 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 00:36:06,648 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-05 00:36:06,948 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:36:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:07,064 INFO L93 Difference]: Finished difference Result 8255 states and 20816 transitions. [2021-06-05 00:36:07,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:07,064 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:07,070 INFO L225 Difference]: With dead ends: 8255 [2021-06-05 00:36:07,070 INFO L226 Difference]: Without dead ends: 8255 [2021-06-05 00:36:07,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 4319.0ms TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:36:07,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2021-06-05 00:36:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 4026. [2021-06-05 00:36:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 4024 states have (on average 2.6600397614314115) internal successors, (10704), 4025 states have internal predecessors, (10704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 10704 transitions. [2021-06-05 00:36:07,133 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 10704 transitions. Word has length 94 [2021-06-05 00:36:07,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:07,134 INFO L482 AbstractCegarLoop]: Abstraction has 4026 states and 10704 transitions. [2021-06-05 00:36:07,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 10704 transitions. [2021-06-05 00:36:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:07,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:07,137 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:07,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 00:36:07,138 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:07,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:07,138 INFO L82 PathProgramCache]: Analyzing trace with hash -314420957, now seen corresponding path program 18 times [2021-06-05 00:36:07,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:07,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547528929] [2021-06-05 00:36:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:07,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:07,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547528929] [2021-06-05 00:36:07,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547528929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:07,733 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:07,733 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:07,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109882638] [2021-06-05 00:36:07,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:07,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:07,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:07,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:07,734 INFO L87 Difference]: Start difference. First operand 4026 states and 10704 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:09,168 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-05 00:36:09,294 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:36:09,552 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:36:09,693 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:36:09,880 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:10,068 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:36:10,280 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:36:10,455 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:36:10,681 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-06-05 00:36:11,032 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:36:11,271 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:36:11,517 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:36:11,661 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:36:11,908 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:36:12,148 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:36:12,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:12,259 INFO L93 Difference]: Finished difference Result 7609 states and 19405 transitions. [2021-06-05 00:36:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:36:12,260 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:12,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:12,265 INFO L225 Difference]: With dead ends: 7609 [2021-06-05 00:36:12,265 INFO L226 Difference]: Without dead ends: 7609 [2021-06-05 00:36:12,266 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4064.8ms TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:36:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2021-06-05 00:36:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 3889. [2021-06-05 00:36:12,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3889 states, 3887 states have (on average 2.652688448675071) internal successors, (10311), 3888 states have internal predecessors, (10311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3889 states to 3889 states and 10311 transitions. [2021-06-05 00:36:12,321 INFO L78 Accepts]: Start accepts. Automaton has 3889 states and 10311 transitions. Word has length 94 [2021-06-05 00:36:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:12,321 INFO L482 AbstractCegarLoop]: Abstraction has 3889 states and 10311 transitions. [2021-06-05 00:36:12,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3889 states and 10311 transitions. [2021-06-05 00:36:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:12,325 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:12,325 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:12,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 00:36:12,325 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:12,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:12,325 INFO L82 PathProgramCache]: Analyzing trace with hash -76295461, now seen corresponding path program 19 times [2021-06-05 00:36:12,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:12,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851640965] [2021-06-05 00:36:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:12,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:12,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851640965] [2021-06-05 00:36:12,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851640965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:12,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:12,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:36:12,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341931374] [2021-06-05 00:36:12,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:36:12,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:12,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:36:12,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:36:12,620 INFO L87 Difference]: Start difference. First operand 3889 states and 10311 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:13,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:13,665 INFO L93 Difference]: Finished difference Result 4736 states and 11945 transitions. [2021-06-05 00:36:13,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:36:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:13,670 INFO L225 Difference]: With dead ends: 4736 [2021-06-05 00:36:13,670 INFO L226 Difference]: Without dead ends: 4736 [2021-06-05 00:36:13,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 941.2ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:36:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2021-06-05 00:36:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 3911. [2021-06-05 00:36:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 3909 states have (on average 2.6513174724993602) internal successors, (10364), 3910 states have internal predecessors, (10364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 10364 transitions. [2021-06-05 00:36:13,724 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 10364 transitions. Word has length 94 [2021-06-05 00:36:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:13,725 INFO L482 AbstractCegarLoop]: Abstraction has 3911 states and 10364 transitions. [2021-06-05 00:36:13,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 10364 transitions. [2021-06-05 00:36:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:13,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:13,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:13,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 00:36:13,728 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:13,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1290428557, now seen corresponding path program 20 times [2021-06-05 00:36:13,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:13,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246716636] [2021-06-05 00:36:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:14,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:14,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246716636] [2021-06-05 00:36:14,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246716636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:14,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:14,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:14,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334945399] [2021-06-05 00:36:14,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:14,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:14,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:14,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:14,186 INFO L87 Difference]: Start difference. First operand 3911 states and 10364 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:15,008 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:36:15,197 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:15,369 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:36:15,742 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:36:15,934 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:36:16,135 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:36:16,405 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:16,574 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:16,747 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:16,951 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:36:17,105 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:36:17,281 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:36:17,455 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:36:17,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:17,463 INFO L93 Difference]: Finished difference Result 6179 states and 15709 transitions. [2021-06-05 00:36:17,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:36:17,464 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:17,468 INFO L225 Difference]: With dead ends: 6179 [2021-06-05 00:36:17,468 INFO L226 Difference]: Without dead ends: 6179 [2021-06-05 00:36:17,468 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2917.9ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:36:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2021-06-05 00:36:17,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 4013. [2021-06-05 00:36:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 4011 states have (on average 2.6594365494889054) internal successors, (10667), 4012 states have internal predecessors, (10667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 10667 transitions. [2021-06-05 00:36:17,517 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 10667 transitions. Word has length 94 [2021-06-05 00:36:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:17,517 INFO L482 AbstractCegarLoop]: Abstraction has 4013 states and 10667 transitions. [2021-06-05 00:36:17,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 10667 transitions. [2021-06-05 00:36:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:17,521 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:17,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:17,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 00:36:17,521 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1000323179, now seen corresponding path program 21 times [2021-06-05 00:36:17,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:17,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748686376] [2021-06-05 00:36:17,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:18,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:18,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748686376] [2021-06-05 00:36:18,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748686376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:18,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:18,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:18,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904080417] [2021-06-05 00:36:18,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:18,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:18,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:18,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:18,015 INFO L87 Difference]: Start difference. First operand 4013 states and 10667 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,023 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:19,196 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:36:19,404 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:36:19,618 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:36:20,004 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:36:20,198 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:36:20,502 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:36:20,696 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:36:20,910 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:36:21,106 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:36:21,299 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:36:21,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:21,305 INFO L93 Difference]: Finished difference Result 6787 states and 17333 transitions. [2021-06-05 00:36:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:36:21,306 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:21,310 INFO L225 Difference]: With dead ends: 6787 [2021-06-05 00:36:21,310 INFO L226 Difference]: Without dead ends: 6787 [2021-06-05 00:36:21,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2935.6ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:36:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6787 states. [2021-06-05 00:36:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6787 to 4013. [2021-06-05 00:36:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 4011 states have (on average 2.6594365494889054) internal successors, (10667), 4012 states have internal predecessors, (10667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 10667 transitions. [2021-06-05 00:36:21,362 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 10667 transitions. Word has length 94 [2021-06-05 00:36:21,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:21,363 INFO L482 AbstractCegarLoop]: Abstraction has 4013 states and 10667 transitions. [2021-06-05 00:36:21,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 10667 transitions. [2021-06-05 00:36:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:21,366 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:21,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:21,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 00:36:21,367 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:21,367 INFO L82 PathProgramCache]: Analyzing trace with hash -672432475, now seen corresponding path program 22 times [2021-06-05 00:36:21,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:21,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388564403] [2021-06-05 00:36:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:21,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:21,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388564403] [2021-06-05 00:36:21,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388564403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:21,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:21,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:21,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902540690] [2021-06-05 00:36:21,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:21,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:21,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:21,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:21,826 INFO L87 Difference]: Start difference. First operand 4013 states and 10667 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:22,623 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:36:22,816 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:23,138 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:23,294 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:36:23,495 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:36:23,714 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:36:23,998 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:36:24,180 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:36:24,346 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:36:24,521 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:36:24,671 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:24,864 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:25,032 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:36:25,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:25,040 INFO L93 Difference]: Finished difference Result 6583 states and 16556 transitions. [2021-06-05 00:36:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:36:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:25,045 INFO L225 Difference]: With dead ends: 6583 [2021-06-05 00:36:25,045 INFO L226 Difference]: Without dead ends: 6583 [2021-06-05 00:36:25,045 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2880.3ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:36:25,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-06-05 00:36:25,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 4015. [2021-06-05 00:36:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4013 states have (on average 2.6593570894592573) internal successors, (10672), 4014 states have internal predecessors, (10672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10672 transitions. [2021-06-05 00:36:25,130 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10672 transitions. Word has length 94 [2021-06-05 00:36:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:25,130 INFO L482 AbstractCegarLoop]: Abstraction has 4015 states and 10672 transitions. [2021-06-05 00:36:25,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10672 transitions. [2021-06-05 00:36:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:25,134 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:25,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:25,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 00:36:25,134 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1096103279, now seen corresponding path program 23 times [2021-06-05 00:36:25,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:25,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072953664] [2021-06-05 00:36:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:25,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:25,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072953664] [2021-06-05 00:36:25,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072953664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:25,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:25,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:25,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064271891] [2021-06-05 00:36:25,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:25,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:25,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:25,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:25,757 INFO L87 Difference]: Start difference. First operand 4015 states and 10672 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:26,579 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:36:26,762 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:27,102 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:27,271 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:27,466 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:36:27,642 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:27,848 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:36:28,148 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:36:28,308 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:36:28,465 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:36:28,630 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:36:28,770 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:28,929 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:29,115 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:36:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:29,123 INFO L93 Difference]: Finished difference Result 6493 states and 16331 transitions. [2021-06-05 00:36:29,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:36:29,124 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:29,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:29,128 INFO L225 Difference]: With dead ends: 6493 [2021-06-05 00:36:29,128 INFO L226 Difference]: Without dead ends: 6493 [2021-06-05 00:36:29,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3037.7ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:36:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2021-06-05 00:36:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 4015. [2021-06-05 00:36:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4013 states have (on average 2.6593570894592573) internal successors, (10672), 4014 states have internal predecessors, (10672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10672 transitions. [2021-06-05 00:36:29,180 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10672 transitions. Word has length 94 [2021-06-05 00:36:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:29,180 INFO L482 AbstractCegarLoop]: Abstraction has 4015 states and 10672 transitions. [2021-06-05 00:36:29,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10672 transitions. [2021-06-05 00:36:29,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:29,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:29,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:29,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 00:36:29,184 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:29,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1771290287, now seen corresponding path program 24 times [2021-06-05 00:36:29,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:29,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786132250] [2021-06-05 00:36:29,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:29,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:29,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786132250] [2021-06-05 00:36:29,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786132250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:29,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:29,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:29,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561876312] [2021-06-05 00:36:29,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:29,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:29,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:29,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:29,674 INFO L87 Difference]: Start difference. First operand 4015 states and 10672 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:30,497 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:36:30,680 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:30,857 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:36:31,075 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:36:31,239 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:31,442 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:36:31,822 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:36:31,992 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:32,187 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:36:32,536 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:36:32,725 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:36:32,901 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:36:33,125 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:36:33,327 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:36:33,572 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:36:33,771 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:36:33,965 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:36:34,148 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:34,341 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:36:34,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:34,351 INFO L93 Difference]: Finished difference Result 8006 states and 20183 transitions. [2021-06-05 00:36:34,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:36:34,352 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:34,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:34,357 INFO L225 Difference]: With dead ends: 8006 [2021-06-05 00:36:34,357 INFO L226 Difference]: Without dead ends: 8006 [2021-06-05 00:36:34,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4244.3ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:36:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8006 states. [2021-06-05 00:36:34,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8006 to 4027. [2021-06-05 00:36:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 4025 states have (on average 2.6603726708074533) internal successors, (10708), 4026 states have internal predecessors, (10708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 10708 transitions. [2021-06-05 00:36:34,415 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 10708 transitions. Word has length 94 [2021-06-05 00:36:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:34,415 INFO L482 AbstractCegarLoop]: Abstraction has 4027 states and 10708 transitions. [2021-06-05 00:36:34,415 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 10708 transitions. [2021-06-05 00:36:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:34,418 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:34,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:34,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 00:36:34,419 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1485857111, now seen corresponding path program 25 times [2021-06-05 00:36:34,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:34,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380304359] [2021-06-05 00:36:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:34,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:34,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380304359] [2021-06-05 00:36:34,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380304359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:34,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:34,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:34,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417395525] [2021-06-05 00:36:34,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:34,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:34,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:34,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:34,922 INFO L87 Difference]: Start difference. First operand 4027 states and 10708 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:35,969 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:36:36,149 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:36:36,346 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:36,722 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:36,907 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:36:37,090 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:37,297 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:36:37,654 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:36:37,836 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:36:38,036 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:36:38,202 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:38,381 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:36:38,562 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:38,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:38,569 INFO L93 Difference]: Finished difference Result 7175 states and 18102 transitions. [2021-06-05 00:36:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:36:38,570 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:38,574 INFO L225 Difference]: With dead ends: 7175 [2021-06-05 00:36:38,574 INFO L226 Difference]: Without dead ends: 7175 [2021-06-05 00:36:38,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3208.0ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:36:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7175 states. [2021-06-05 00:36:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7175 to 4015. [2021-06-05 00:36:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4013 states have (on average 2.6593570894592573) internal successors, (10672), 4014 states have internal predecessors, (10672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:38,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10672 transitions. [2021-06-05 00:36:38,628 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10672 transitions. Word has length 94 [2021-06-05 00:36:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:38,628 INFO L482 AbstractCegarLoop]: Abstraction has 4015 states and 10672 transitions. [2021-06-05 00:36:38,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10672 transitions. [2021-06-05 00:36:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:38,632 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:38,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:38,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 00:36:38,633 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1831152755, now seen corresponding path program 26 times [2021-06-05 00:36:38,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:38,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776875724] [2021-06-05 00:36:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:39,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:39,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776875724] [2021-06-05 00:36:39,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776875724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:39,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:39,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:39,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225852253] [2021-06-05 00:36:39,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:39,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:39,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:39,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:39,093 INFO L87 Difference]: Start difference. First operand 4015 states and 10672 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:40,225 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:40,397 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:40,557 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:36:40,760 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:36:40,964 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:36:41,221 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:36:41,363 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:36:41,504 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:36:41,652 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:36:41,780 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:41,927 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:36:42,072 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:36:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:42,079 INFO L93 Difference]: Finished difference Result 6703 states and 16841 transitions. [2021-06-05 00:36:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:36:42,080 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:42,085 INFO L225 Difference]: With dead ends: 6703 [2021-06-05 00:36:42,085 INFO L226 Difference]: Without dead ends: 6703 [2021-06-05 00:36:42,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2682.2ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:36:42,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2021-06-05 00:36:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 4021. [2021-06-05 00:36:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 2.6591191838765864) internal successors, (10687), 4020 states have internal predecessors, (10687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 10687 transitions. [2021-06-05 00:36:42,141 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 10687 transitions. Word has length 94 [2021-06-05 00:36:42,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:42,141 INFO L482 AbstractCegarLoop]: Abstraction has 4021 states and 10687 transitions. [2021-06-05 00:36:42,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 10687 transitions. [2021-06-05 00:36:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:42,145 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:42,145 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:42,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 00:36:42,145 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:42,145 INFO L82 PathProgramCache]: Analyzing trace with hash -62617001, now seen corresponding path program 27 times [2021-06-05 00:36:42,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:42,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257431258] [2021-06-05 00:36:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:42,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:42,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257431258] [2021-06-05 00:36:42,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257431258] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:42,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:42,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:42,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360141112] [2021-06-05 00:36:42,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:42,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:42,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:42,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:42,672 INFO L87 Difference]: Start difference. First operand 4021 states and 10687 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:43,782 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:43,941 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:44,113 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:44,305 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:36:44,477 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:44,679 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:36:44,980 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:36:45,124 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:36:45,276 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:36:45,425 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:36:45,549 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:45,693 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:36:45,841 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:36:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:45,848 INFO L93 Difference]: Finished difference Result 6977 states and 17368 transitions. [2021-06-05 00:36:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:36:45,849 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:45,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:45,853 INFO L225 Difference]: With dead ends: 6977 [2021-06-05 00:36:45,853 INFO L226 Difference]: Without dead ends: 6977 [2021-06-05 00:36:45,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2906.8ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:36:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6977 states. [2021-06-05 00:36:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6977 to 4019. [2021-06-05 00:36:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4017 states have (on average 2.6591984067712224) internal successors, (10682), 4018 states have internal predecessors, (10682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 10682 transitions. [2021-06-05 00:36:45,906 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 10682 transitions. Word has length 94 [2021-06-05 00:36:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:45,907 INFO L482 AbstractCegarLoop]: Abstraction has 4019 states and 10682 transitions. [2021-06-05 00:36:45,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:45,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 10682 transitions. [2021-06-05 00:36:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:45,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:45,910 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:45,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 00:36:45,911 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:45,911 INFO L82 PathProgramCache]: Analyzing trace with hash -597869171, now seen corresponding path program 28 times [2021-06-05 00:36:45,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:45,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253381902] [2021-06-05 00:36:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:46,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:46,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253381902] [2021-06-05 00:36:46,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253381902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:46,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:46,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:46,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478562094] [2021-06-05 00:36:46,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:46,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:46,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:46,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:46,425 INFO L87 Difference]: Start difference. First operand 4019 states and 10682 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,236 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:36:47,558 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:47,708 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:36:47,873 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:48,039 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:48,235 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:36:48,412 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:48,620 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:36:48,898 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:36:49,046 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:36:49,190 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:36:49,337 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:36:49,460 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:36:49,604 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:36:49,750 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:36:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:49,757 INFO L93 Difference]: Finished difference Result 6639 states and 16665 transitions. [2021-06-05 00:36:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:36:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:49,762 INFO L225 Difference]: With dead ends: 6639 [2021-06-05 00:36:49,763 INFO L226 Difference]: Without dead ends: 6639 [2021-06-05 00:36:49,763 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3057.6ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:36:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6639 states. [2021-06-05 00:36:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6639 to 4019. [2021-06-05 00:36:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4017 states have (on average 2.6591984067712224) internal successors, (10682), 4018 states have internal predecessors, (10682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 10682 transitions. [2021-06-05 00:36:49,813 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 10682 transitions. Word has length 94 [2021-06-05 00:36:49,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:49,813 INFO L482 AbstractCegarLoop]: Abstraction has 4019 states and 10682 transitions. [2021-06-05 00:36:49,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 10682 transitions. [2021-06-05 00:36:49,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:49,816 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:49,817 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:49,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 00:36:49,817 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:49,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:49,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1198798443, now seen corresponding path program 29 times [2021-06-05 00:36:49,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:49,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567523548] [2021-06-05 00:36:49,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:50,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:50,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567523548] [2021-06-05 00:36:50,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567523548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:50,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:50,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:50,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745876750] [2021-06-05 00:36:50,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:50,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:50,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:50,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:50,323 INFO L87 Difference]: Start difference. First operand 4019 states and 10682 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:51,280 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:51,453 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:36:51,627 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:36:51,834 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:36:52,000 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:52,216 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:36:52,575 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:52,775 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:36:52,946 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:53,162 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:36:53,499 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:36:53,686 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:36:53,845 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:36:54,044 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:36:54,216 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:36:54,450 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:36:54,627 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:36:54,860 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:36:55,029 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:55,221 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:36:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:55,231 INFO L93 Difference]: Finished difference Result 8361 states and 21105 transitions. [2021-06-05 00:36:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:36:55,231 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:36:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:55,236 INFO L225 Difference]: With dead ends: 8361 [2021-06-05 00:36:55,237 INFO L226 Difference]: Without dead ends: 8361 [2021-06-05 00:36:55,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4442.4ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:36:55,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8361 states. [2021-06-05 00:36:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8361 to 4055. [2021-06-05 00:36:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4055 states, 4053 states have (on average 2.6622255119664446) internal successors, (10790), 4054 states have internal predecessors, (10790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4055 states to 4055 states and 10790 transitions. [2021-06-05 00:36:55,293 INFO L78 Accepts]: Start accepts. Automaton has 4055 states and 10790 transitions. Word has length 94 [2021-06-05 00:36:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:55,294 INFO L482 AbstractCegarLoop]: Abstraction has 4055 states and 10790 transitions. [2021-06-05 00:36:55,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4055 states and 10790 transitions. [2021-06-05 00:36:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:36:55,297 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:55,297 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:55,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 00:36:55,297 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:36:55,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:55,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2058348955, now seen corresponding path program 30 times [2021-06-05 00:36:55,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:55,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811328475] [2021-06-05 00:36:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:55,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:55,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811328475] [2021-06-05 00:36:55,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811328475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:55,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:55,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:36:55,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648390223] [2021-06-05 00:36:55,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:36:55,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:55,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:36:55,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:36:55,784 INFO L87 Difference]: Start difference. First operand 4055 states and 10790 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:56,756 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:36:56,940 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:36:57,140 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:36:57,340 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:36:57,710 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:36:57,871 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:36:58,064 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:36:58,237 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:36:58,453 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:36:58,823 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:36:58,994 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:36:59,155 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:36:59,332 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:36:59,500 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:36:59,709 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:36:59,874 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:00,031 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:37:00,205 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:37:00,370 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:00,540 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:00,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:00,550 INFO L93 Difference]: Finished difference Result 8630 states and 21565 transitions. [2021-06-05 00:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:37:00,551 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:00,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:00,556 INFO L225 Difference]: With dead ends: 8630 [2021-06-05 00:37:00,556 INFO L226 Difference]: Without dead ends: 8630 [2021-06-05 00:37:00,556 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4270.7ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:37:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2021-06-05 00:37:00,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 4043. [2021-06-05 00:37:00,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4043 states, 4041 states have (on average 2.6612224696857214) internal successors, (10754), 4042 states have internal predecessors, (10754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4043 states to 4043 states and 10754 transitions. [2021-06-05 00:37:00,610 INFO L78 Accepts]: Start accepts. Automaton has 4043 states and 10754 transitions. Word has length 94 [2021-06-05 00:37:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:00,610 INFO L482 AbstractCegarLoop]: Abstraction has 4043 states and 10754 transitions. [2021-06-05 00:37:00,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4043 states and 10754 transitions. [2021-06-05 00:37:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:00,613 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:00,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:00,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 00:37:00,614 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:00,614 INFO L82 PathProgramCache]: Analyzing trace with hash 271589039, now seen corresponding path program 31 times [2021-06-05 00:37:00,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:00,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886794534] [2021-06-05 00:37:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:01,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:01,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886794534] [2021-06-05 00:37:01,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886794534] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:01,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:01,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:01,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274091646] [2021-06-05 00:37:01,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:01,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:01,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:01,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:01,113 INFO L87 Difference]: Start difference. First operand 4043 states and 10754 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:01,951 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:37:02,114 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:02,286 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:37:02,652 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:02,810 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:02,973 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:03,164 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:03,335 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:03,573 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:03,912 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:37:04,071 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:37:04,265 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:37:04,451 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:04,622 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:37:04,808 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:04,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:04,819 INFO L93 Difference]: Finished difference Result 7457 states and 18818 transitions. [2021-06-05 00:37:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:37:04,820 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:04,825 INFO L225 Difference]: With dead ends: 7457 [2021-06-05 00:37:04,825 INFO L226 Difference]: Without dead ends: 7457 [2021-06-05 00:37:04,832 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3282.6ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:37:04,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7457 states. [2021-06-05 00:37:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7457 to 4019. [2021-06-05 00:37:04,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4017 states have (on average 2.6591984067712224) internal successors, (10682), 4018 states have internal predecessors, (10682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 10682 transitions. [2021-06-05 00:37:04,890 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 10682 transitions. Word has length 94 [2021-06-05 00:37:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:04,891 INFO L482 AbstractCegarLoop]: Abstraction has 4019 states and 10682 transitions. [2021-06-05 00:37:04,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 10682 transitions. [2021-06-05 00:37:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:04,894 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:04,894 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:04,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 00:37:04,894 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1720847629, now seen corresponding path program 32 times [2021-06-05 00:37:04,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:04,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673629623] [2021-06-05 00:37:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:05,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:05,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673629623] [2021-06-05 00:37:05,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673629623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:05,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:05,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:05,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994580328] [2021-06-05 00:37:05,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:05,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:05,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:05,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:05,466 INFO L87 Difference]: Start difference. First operand 4019 states and 10682 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:06,541 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:06,709 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:06,873 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:37:07,084 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:37:07,282 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:37:07,768 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:37:07,902 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:37:08,143 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:37:08,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:08,281 INFO L93 Difference]: Finished difference Result 6823 states and 17126 transitions. [2021-06-05 00:37:08,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:37:08,281 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:08,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:08,286 INFO L225 Difference]: With dead ends: 6823 [2021-06-05 00:37:08,286 INFO L226 Difference]: Without dead ends: 6823 [2021-06-05 00:37:08,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2598.5ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:37:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6823 states. [2021-06-05 00:37:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6823 to 4027. [2021-06-05 00:37:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 4025 states have (on average 2.6588819875776397) internal successors, (10702), 4026 states have internal predecessors, (10702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 10702 transitions. [2021-06-05 00:37:08,339 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 10702 transitions. Word has length 94 [2021-06-05 00:37:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:08,339 INFO L482 AbstractCegarLoop]: Abstraction has 4027 states and 10702 transitions. [2021-06-05 00:37:08,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 10702 transitions. [2021-06-05 00:37:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:08,342 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:08,342 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:08,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 00:37:08,342 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash -805583913, now seen corresponding path program 33 times [2021-06-05 00:37:08,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:08,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150541102] [2021-06-05 00:37:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:08,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:08,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150541102] [2021-06-05 00:37:08,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150541102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:08,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:08,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:08,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332405309] [2021-06-05 00:37:08,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:08,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:08,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:08,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:08,823 INFO L87 Difference]: Start difference. First operand 4027 states and 10702 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,926 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:10,102 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:10,278 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:10,472 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:10,641 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:10,844 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:11,384 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:37:11,516 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:37:11,757 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:37:11,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:11,907 INFO L93 Difference]: Finished difference Result 7097 states and 17653 transitions. [2021-06-05 00:37:11,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:37:11,908 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:11,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:11,912 INFO L225 Difference]: With dead ends: 7097 [2021-06-05 00:37:11,913 INFO L226 Difference]: Without dead ends: 7097 [2021-06-05 00:37:11,913 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2777.0ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:37:11,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7097 states. [2021-06-05 00:37:11,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7097 to 4025. [2021-06-05 00:37:11,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4023 states have (on average 2.658960974397216) internal successors, (10697), 4024 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 10697 transitions. [2021-06-05 00:37:11,968 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 10697 transitions. Word has length 94 [2021-06-05 00:37:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:11,968 INFO L482 AbstractCegarLoop]: Abstraction has 4025 states and 10697 transitions. [2021-06-05 00:37:11,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 10697 transitions. [2021-06-05 00:37:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:11,971 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:11,971 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:11,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 00:37:11,972 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1340836083, now seen corresponding path program 34 times [2021-06-05 00:37:11,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:11,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456862316] [2021-06-05 00:37:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:12,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:12,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456862316] [2021-06-05 00:37:12,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456862316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:12,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:12,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:12,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132829948] [2021-06-05 00:37:12,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:12,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:12,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:12,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:12,467 INFO L87 Difference]: Start difference. First operand 4025 states and 10697 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:13,440 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:37:13,569 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:13,734 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:13,906 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:14,078 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:14,292 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:14,462 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:14,674 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:15,230 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:37:15,363 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:37:15,604 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:37:15,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:15,742 INFO L93 Difference]: Finished difference Result 7163 states and 17797 transitions. [2021-06-05 00:37:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:37:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:15,748 INFO L225 Difference]: With dead ends: 7163 [2021-06-05 00:37:15,748 INFO L226 Difference]: Without dead ends: 7163 [2021-06-05 00:37:15,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2911.0ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:37:15,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7163 states. [2021-06-05 00:37:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7163 to 4021. [2021-06-05 00:37:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 2.6591191838765864) internal successors, (10687), 4020 states have internal predecessors, (10687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 10687 transitions. [2021-06-05 00:37:15,810 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 10687 transitions. Word has length 94 [2021-06-05 00:37:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:15,810 INFO L482 AbstractCegarLoop]: Abstraction has 4021 states and 10687 transitions. [2021-06-05 00:37:15,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:15,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 10687 transitions. [2021-06-05 00:37:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:15,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:15,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:15,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 00:37:15,814 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:15,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:15,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1764516877, now seen corresponding path program 35 times [2021-06-05 00:37:15,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:15,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817333330] [2021-06-05 00:37:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:16,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:16,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817333330] [2021-06-05 00:37:16,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817333330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:16,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:16,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:16,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578209034] [2021-06-05 00:37:16,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:16,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:16,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:16,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:16,313 INFO L87 Difference]: Start difference. First operand 4021 states and 10687 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:17,426 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:37:17,576 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:17,716 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:17,881 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:18,061 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:18,262 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:18,448 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:18,661 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:19,212 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:37:19,346 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:37:19,588 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:37:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:19,729 INFO L93 Difference]: Finished difference Result 6745 states and 16904 transitions. [2021-06-05 00:37:19,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:37:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:19,734 INFO L225 Difference]: With dead ends: 6745 [2021-06-05 00:37:19,734 INFO L226 Difference]: Without dead ends: 6745 [2021-06-05 00:37:19,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3059.5ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:37:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2021-06-05 00:37:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 4021. [2021-06-05 00:37:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 2.6591191838765864) internal successors, (10687), 4020 states have internal predecessors, (10687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 10687 transitions. [2021-06-05 00:37:19,787 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 10687 transitions. Word has length 94 [2021-06-05 00:37:19,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:19,787 INFO L482 AbstractCegarLoop]: Abstraction has 4021 states and 10687 transitions. [2021-06-05 00:37:19,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 10687 transitions. [2021-06-05 00:37:19,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:19,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:19,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:19,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 00:37:19,791 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:19,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:19,791 INFO L82 PathProgramCache]: Analyzing trace with hash -2121112213, now seen corresponding path program 36 times [2021-06-05 00:37:19,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:19,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522315946] [2021-06-05 00:37:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:20,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:20,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522315946] [2021-06-05 00:37:20,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522315946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:20,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:20,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:20,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094085133] [2021-06-05 00:37:20,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:20,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:20,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:20,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:20,304 INFO L87 Difference]: Start difference. First operand 4021 states and 10687 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:21,142 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:21,322 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:21,455 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:37:21,625 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:37:21,809 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:37:22,012 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:37:22,175 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:37:22,388 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:37:22,721 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:22,894 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:23,123 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:37:23,296 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:23,507 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:37:23,878 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:37:24,069 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:37:24,213 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:37:24,406 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:37:24,557 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:37:24,761 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:37:24,910 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:37:25,114 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:37:25,264 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:25,451 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:37:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:25,461 INFO L93 Difference]: Finished difference Result 8714 states and 22022 transitions. [2021-06-05 00:37:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:37:25,461 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:25,467 INFO L225 Difference]: With dead ends: 8714 [2021-06-05 00:37:25,467 INFO L226 Difference]: Without dead ends: 8714 [2021-06-05 00:37:25,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4593.9ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8714 states. [2021-06-05 00:37:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8714 to 4069. [2021-06-05 00:37:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 4067 states have (on average 2.663142365379887) internal successors, (10831), 4068 states have internal predecessors, (10831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:25,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 10831 transitions. [2021-06-05 00:37:25,527 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 10831 transitions. Word has length 94 [2021-06-05 00:37:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:25,527 INFO L482 AbstractCegarLoop]: Abstraction has 4069 states and 10831 transitions. [2021-06-05 00:37:25,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 10831 transitions. [2021-06-05 00:37:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:25,530 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:25,530 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:25,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 00:37:25,531 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:25,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:25,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1083292315, now seen corresponding path program 37 times [2021-06-05 00:37:25,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:25,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225826075] [2021-06-05 00:37:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:26,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:26,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225826075] [2021-06-05 00:37:26,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225826075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:26,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:26,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:26,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320930430] [2021-06-05 00:37:26,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:26,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:26,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:26,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:26,073 INFO L87 Difference]: Start difference. First operand 4069 states and 10831 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:26,934 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:27,097 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:27,231 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:37:27,401 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:37:27,581 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:37:27,779 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:37:28,128 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:28,295 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:28,478 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:28,690 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:28,863 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:29,077 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:29,442 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:37:29,614 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:37:29,759 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:37:29,935 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:37:30,100 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:37:30,285 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:37:30,449 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:30,590 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:37:30,769 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:37:30,923 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:31,109 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:31,119 INFO L93 Difference]: Finished difference Result 8983 states and 22482 transitions. [2021-06-05 00:37:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:37:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:31,133 INFO L225 Difference]: With dead ends: 8983 [2021-06-05 00:37:31,133 INFO L226 Difference]: Without dead ends: 8983 [2021-06-05 00:37:31,134 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4487.2ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:31,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8983 states. [2021-06-05 00:37:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8983 to 4057. [2021-06-05 00:37:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 4055 states have (on average 2.662145499383477) internal successors, (10795), 4056 states have internal predecessors, (10795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 10795 transitions. [2021-06-05 00:37:31,196 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 10795 transitions. Word has length 94 [2021-06-05 00:37:31,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:31,196 INFO L482 AbstractCegarLoop]: Abstraction has 4057 states and 10795 transitions. [2021-06-05 00:37:31,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 10795 transitions. [2021-06-05 00:37:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:31,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:31,200 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:31,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 00:37:31,200 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:31,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1246645679, now seen corresponding path program 38 times [2021-06-05 00:37:31,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:31,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868284763] [2021-06-05 00:37:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:31,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:31,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868284763] [2021-06-05 00:37:31,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868284763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:31,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:31,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:31,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234149665] [2021-06-05 00:37:31,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:31,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:31,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:31,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:31,719 INFO L87 Difference]: Start difference. First operand 4057 states and 10795 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:32,539 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:32,694 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:32,827 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:37:32,994 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:37:33,421 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:33,570 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:33,734 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:33,914 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:34,111 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:34,283 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:34,492 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:34,865 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:37:35,021 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:37:35,171 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:37:35,333 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:37:35,488 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:37:35,657 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:37:35,820 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:35,964 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:37:36,134 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:37:36,318 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:36,482 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:36,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:36,491 INFO L93 Difference]: Finished difference Result 9027 states and 22580 transitions. [2021-06-05 00:37:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:37:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:36,498 INFO L225 Difference]: With dead ends: 9027 [2021-06-05 00:37:36,498 INFO L226 Difference]: Without dead ends: 9027 [2021-06-05 00:37:36,499 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4240.7ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:37:36,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9027 states. [2021-06-05 00:37:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9027 to 4033. [2021-06-05 00:37:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 4031 states have (on average 2.66013396179608) internal successors, (10723), 4032 states have internal predecessors, (10723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 10723 transitions. [2021-06-05 00:37:36,560 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 10723 transitions. Word has length 94 [2021-06-05 00:37:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:36,561 INFO L482 AbstractCegarLoop]: Abstraction has 4033 states and 10723 transitions. [2021-06-05 00:37:36,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 10723 transitions. [2021-06-05 00:37:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:36,564 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:36,564 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:36,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 00:37:36,564 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:36,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:36,564 INFO L82 PathProgramCache]: Analyzing trace with hash -855319471, now seen corresponding path program 39 times [2021-06-05 00:37:36,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:36,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878773306] [2021-06-05 00:37:36,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:37,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:37,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878773306] [2021-06-05 00:37:37,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878773306] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:37,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:37,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:37,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458200191] [2021-06-05 00:37:37,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:37,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:37,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:37,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:37,120 INFO L87 Difference]: Start difference. First operand 4033 states and 10723 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:37,923 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:38,078 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:37:38,426 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:37:38,572 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:38,713 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:38,881 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:39,055 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:39,251 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:39,424 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:39,696 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:40,015 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:37:40,160 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:37:40,316 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:37:40,448 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:37:40,590 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:37:40,751 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:40,757 INFO L93 Difference]: Finished difference Result 7631 states and 19248 transitions. [2021-06-05 00:37:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:37:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:40,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:40,763 INFO L225 Difference]: With dead ends: 7631 [2021-06-05 00:37:40,763 INFO L226 Difference]: Without dead ends: 7631 [2021-06-05 00:37:40,763 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3323.2ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:37:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7631 states. [2021-06-05 00:37:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7631 to 4021. [2021-06-05 00:37:40,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 2.6591191838765864) internal successors, (10687), 4020 states have internal predecessors, (10687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 10687 transitions. [2021-06-05 00:37:40,817 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 10687 transitions. Word has length 94 [2021-06-05 00:37:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:40,817 INFO L482 AbstractCegarLoop]: Abstraction has 4021 states and 10687 transitions. [2021-06-05 00:37:40,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 10687 transitions. [2021-06-05 00:37:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:40,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:40,820 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:40,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 00:37:40,820 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:40,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:40,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1394406491, now seen corresponding path program 40 times [2021-06-05 00:37:40,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:40,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754804576] [2021-06-05 00:37:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:41,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:41,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754804576] [2021-06-05 00:37:41,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754804576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:41,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:41,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:41,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951497960] [2021-06-05 00:37:41,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:41,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:41,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:41,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:41,286 INFO L87 Difference]: Start difference. First operand 4021 states and 10687 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:42,317 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:42,486 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:42,649 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:37:42,846 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:37:43,061 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:37:43,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:43,973 INFO L93 Difference]: Finished difference Result 6341 states and 16091 transitions. [2021-06-05 00:37:43,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:37:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:43,979 INFO L225 Difference]: With dead ends: 6341 [2021-06-05 00:37:43,979 INFO L226 Difference]: Without dead ends: 6341 [2021-06-05 00:37:43,979 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2442.0ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:37:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6341 states. [2021-06-05 00:37:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6341 to 4031. [2021-06-05 00:37:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4031 states, 4029 states have (on average 2.658724249193348) internal successors, (10712), 4030 states have internal predecessors, (10712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 10712 transitions. [2021-06-05 00:37:44,033 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 10712 transitions. Word has length 94 [2021-06-05 00:37:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:44,033 INFO L482 AbstractCegarLoop]: Abstraction has 4031 states and 10712 transitions. [2021-06-05 00:37:44,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 10712 transitions. [2021-06-05 00:37:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:44,036 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:44,036 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:44,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 00:37:44,036 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:44,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:44,037 INFO L82 PathProgramCache]: Analyzing trace with hash 374129263, now seen corresponding path program 41 times [2021-06-05 00:37:44,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:44,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943467387] [2021-06-05 00:37:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:44,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:44,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943467387] [2021-06-05 00:37:44,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943467387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:44,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:44,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:44,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575855286] [2021-06-05 00:37:44,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:44,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:44,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:44,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:44,518 INFO L87 Difference]: Start difference. First operand 4031 states and 10712 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:45,463 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:37:45,601 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:45,775 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:37:45,948 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:46,139 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:46,308 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:46,508 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:47,471 INFO L93 Difference]: Finished difference Result 6615 states and 16618 transitions. [2021-06-05 00:37:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:37:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:47,477 INFO L225 Difference]: With dead ends: 6615 [2021-06-05 00:37:47,477 INFO L226 Difference]: Without dead ends: 6615 [2021-06-05 00:37:47,478 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2642.2ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:37:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2021-06-05 00:37:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 4029. [2021-06-05 00:37:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 4027 states have (on average 2.658803079215297) internal successors, (10707), 4028 states have internal predecessors, (10707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 10707 transitions. [2021-06-05 00:37:47,533 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 10707 transitions. Word has length 94 [2021-06-05 00:37:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:47,533 INFO L482 AbstractCegarLoop]: Abstraction has 4029 states and 10707 transitions. [2021-06-05 00:37:47,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 10707 transitions. [2021-06-05 00:37:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:47,537 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:47,537 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:47,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 00:37:47,537 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:47,537 INFO L82 PathProgramCache]: Analyzing trace with hash -161122907, now seen corresponding path program 42 times [2021-06-05 00:37:47,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:47,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102233549] [2021-06-05 00:37:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:48,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:48,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102233549] [2021-06-05 00:37:48,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102233549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:48,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:48,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:48,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011235527] [2021-06-05 00:37:48,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:48,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:48,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:48,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:48,037 INFO L87 Difference]: Start difference. First operand 4029 states and 10707 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:49,100 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:37:49,264 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:49,440 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:49,613 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:49,813 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:49,984 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:50,212 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:51,179 INFO L93 Difference]: Finished difference Result 6681 states and 16762 transitions. [2021-06-05 00:37:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:37:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:51,184 INFO L225 Difference]: With dead ends: 6681 [2021-06-05 00:37:51,184 INFO L226 Difference]: Without dead ends: 6681 [2021-06-05 00:37:51,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2780.7ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:37:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2021-06-05 00:37:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 4025. [2021-06-05 00:37:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4023 states have (on average 2.658960974397216) internal successors, (10697), 4024 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 10697 transitions. [2021-06-05 00:37:51,237 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 10697 transitions. Word has length 94 [2021-06-05 00:37:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:51,237 INFO L482 AbstractCegarLoop]: Abstraction has 4025 states and 10697 transitions. [2021-06-05 00:37:51,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:51,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 10697 transitions. [2021-06-05 00:37:51,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:51,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:51,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:51,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 00:37:51,241 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:51,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:51,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1350737243, now seen corresponding path program 43 times [2021-06-05 00:37:51,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:51,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114456771] [2021-06-05 00:37:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:51,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:51,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114456771] [2021-06-05 00:37:51,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114456771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:51,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:51,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:51,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923019634] [2021-06-05 00:37:51,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:51,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:51,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:51,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:51,750 INFO L87 Difference]: Start difference. First operand 4025 states and 10697 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:52,831 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:37:52,987 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:53,129 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:53,300 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:53,484 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:53,693 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:53,864 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:54,081 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:55,070 INFO L93 Difference]: Finished difference Result 6747 states and 16906 transitions. [2021-06-05 00:37:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:37:55,070 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:55,075 INFO L225 Difference]: With dead ends: 6747 [2021-06-05 00:37:55,075 INFO L226 Difference]: Without dead ends: 6747 [2021-06-05 00:37:55,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 2967.8ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:37:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6747 states. [2021-06-05 00:37:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6747 to 4023. [2021-06-05 00:37:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 4021 states have (on average 2.6590400397910967) internal successors, (10692), 4022 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 10692 transitions. [2021-06-05 00:37:55,127 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 10692 transitions. Word has length 94 [2021-06-05 00:37:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:55,127 INFO L482 AbstractCegarLoop]: Abstraction has 4023 states and 10692 transitions. [2021-06-05 00:37:55,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 10692 transitions. [2021-06-05 00:37:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:55,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:55,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:55,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 00:37:55,131 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:55,131 INFO L82 PathProgramCache]: Analyzing trace with hash 682289263, now seen corresponding path program 44 times [2021-06-05 00:37:55,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:55,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654903903] [2021-06-05 00:37:55,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:55,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:55,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654903903] [2021-06-05 00:37:55,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654903903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:55,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:55,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:55,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722699773] [2021-06-05 00:37:55,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:55,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:55,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:55,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:55,675 INFO L87 Difference]: Start difference. First operand 4023 states and 10692 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:56,778 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:37:56,905 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:37:57,057 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:37:57,202 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:37:57,401 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:37:57,585 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:37:57,786 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:37:57,955 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:37:58,166 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:37:59,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:59,147 INFO L93 Difference]: Finished difference Result 6267 states and 15870 transitions. [2021-06-05 00:37:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:37:59,147 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:37:59,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:59,152 INFO L225 Difference]: With dead ends: 6267 [2021-06-05 00:37:59,152 INFO L226 Difference]: Without dead ends: 6267 [2021-06-05 00:37:59,152 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3097.7ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 00:37:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2021-06-05 00:37:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 4023. [2021-06-05 00:37:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 4021 states have (on average 2.6590400397910967) internal successors, (10692), 4022 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 10692 transitions. [2021-06-05 00:37:59,205 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 10692 transitions. Word has length 94 [2021-06-05 00:37:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:59,205 INFO L482 AbstractCegarLoop]: Abstraction has 4023 states and 10692 transitions. [2021-06-05 00:37:59,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 10692 transitions. [2021-06-05 00:37:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:37:59,208 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:59,208 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:59,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 00:37:59,209 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:37:59,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:59,209 INFO L82 PathProgramCache]: Analyzing trace with hash 52912303, now seen corresponding path program 45 times [2021-06-05 00:37:59,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:59,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988510428] [2021-06-05 00:37:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:59,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:59,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988510428] [2021-06-05 00:37:59,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988510428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:59,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:59,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:37:59,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620058700] [2021-06-05 00:37:59,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:37:59,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:59,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:37:59,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:37:59,782 INFO L87 Difference]: Start difference. First operand 4023 states and 10692 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:00,576 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:38:00,849 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:00,982 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:38:01,159 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:38:01,343 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:38:01,540 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:38:01,703 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:38:01,918 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:38:02,238 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:02,395 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:02,578 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:02,808 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:38:02,980 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:03,191 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:38:03,525 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:38:03,719 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:38:03,852 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:38:04,045 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:38:04,183 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:38:04,383 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:38:04,517 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:38:04,720 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:38:04,850 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:05,036 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:38:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:05,045 INFO L93 Difference]: Finished difference Result 8040 states and 20374 transitions. [2021-06-05 00:38:05,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:38:05,046 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:05,050 INFO L225 Difference]: With dead ends: 8040 [2021-06-05 00:38:05,050 INFO L226 Difference]: Without dead ends: 8040 [2021-06-05 00:38:05,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 4787.1ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:38:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8040 states. [2021-06-05 00:38:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8040 to 4083. [2021-06-05 00:38:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 4081 states have (on average 2.6640529282038714) internal successors, (10872), 4082 states have internal predecessors, (10872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 10872 transitions. [2021-06-05 00:38:05,108 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 10872 transitions. Word has length 94 [2021-06-05 00:38:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:05,108 INFO L482 AbstractCegarLoop]: Abstraction has 4083 states and 10872 transitions. [2021-06-05 00:38:05,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:05,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 10872 transitions. [2021-06-05 00:38:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:05,111 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:05,111 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:05,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 00:38:05,111 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:05,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:05,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1090732201, now seen corresponding path program 46 times [2021-06-05 00:38:05,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:05,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042728166] [2021-06-05 00:38:05,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:05,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:05,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042728166] [2021-06-05 00:38:05,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042728166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:05,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:05,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:05,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487058551] [2021-06-05 00:38:05,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:05,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:05,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:05,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:05,632 INFO L87 Difference]: Start difference. First operand 4083 states and 10872 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:06,462 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:38:06,741 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:06,897 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:38:07,080 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:38:07,271 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:38:07,474 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:38:07,803 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:07,966 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:08,150 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:08,340 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:08,534 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:38:08,712 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:08,929 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:38:09,304 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:38:09,487 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:38:09,619 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:38:09,795 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:38:09,934 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:38:10,119 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:38:10,283 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:10,410 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:38:10,584 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:38:10,722 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:10,893 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:10,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:10,902 INFO L93 Difference]: Finished difference Result 8309 states and 20834 transitions. [2021-06-05 00:38:10,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:38:10,903 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:10,908 INFO L225 Difference]: With dead ends: 8309 [2021-06-05 00:38:10,908 INFO L226 Difference]: Without dead ends: 8309 [2021-06-05 00:38:10,909 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4665.4ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:38:10,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2021-06-05 00:38:10,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 4071. [2021-06-05 00:38:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4071 states, 4069 states have (on average 2.663062177439174) internal successors, (10836), 4070 states have internal predecessors, (10836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 10836 transitions. [2021-06-05 00:38:10,982 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 10836 transitions. Word has length 94 [2021-06-05 00:38:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:10,982 INFO L482 AbstractCegarLoop]: Abstraction has 4071 states and 10836 transitions. [2021-06-05 00:38:10,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 10836 transitions. [2021-06-05 00:38:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:10,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:10,985 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:10,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 00:38:10,985 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:10,986 INFO L82 PathProgramCache]: Analyzing trace with hash -874297101, now seen corresponding path program 47 times [2021-06-05 00:38:10,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:10,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981677719] [2021-06-05 00:38:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:11,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:11,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981677719] [2021-06-05 00:38:11,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981677719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:11,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:11,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:11,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935821497] [2021-06-05 00:38:11,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:11,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:11,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:11,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:11,557 INFO L87 Difference]: Start difference. First operand 4071 states and 10836 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:12,377 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:38:12,662 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:12,796 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:38:12,972 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:38:13,359 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:13,514 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:38:13,653 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:13,834 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:14,020 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:14,228 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:38:14,402 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:14,615 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:38:14,983 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:38:15,139 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:38:15,272 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:38:15,433 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:38:15,572 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:38:15,739 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:38:15,892 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:38:16,022 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:38:16,185 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:38:16,328 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:16,490 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:16,500 INFO L93 Difference]: Finished difference Result 8353 states and 20932 transitions. [2021-06-05 00:38:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:38:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:16,507 INFO L225 Difference]: With dead ends: 8353 [2021-06-05 00:38:16,508 INFO L226 Difference]: Without dead ends: 8353 [2021-06-05 00:38:16,508 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4406.6ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:38:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8353 states. [2021-06-05 00:38:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8353 to 4047. [2021-06-05 00:38:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4047 states, 4045 states have (on average 2.6610630407911002) internal successors, (10764), 4046 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 10764 transitions. [2021-06-05 00:38:16,587 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 10764 transitions. Word has length 94 [2021-06-05 00:38:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:16,588 INFO L482 AbstractCegarLoop]: Abstraction has 4047 states and 10764 transitions. [2021-06-05 00:38:16,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:16,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 10764 transitions. [2021-06-05 00:38:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:16,591 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:16,591 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:16,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 00:38:16,591 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:16,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:16,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1318705045, now seen corresponding path program 48 times [2021-06-05 00:38:16,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:16,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675159927] [2021-06-05 00:38:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:17,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:17,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675159927] [2021-06-05 00:38:17,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675159927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:17,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:17,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:17,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121693538] [2021-06-05 00:38:17,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:17,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:17,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:17,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:17,141 INFO L87 Difference]: Start difference. First operand 4047 states and 10764 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:17,957 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:38:18,083 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:38:18,242 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:38:18,686 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:18,827 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:18,989 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:38:19,147 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:19,334 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:19,517 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:19,716 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:38:19,891 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:20,103 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:38:20,469 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:38:20,626 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:38:20,774 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:38:20,937 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:38:21,093 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:38:21,263 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:38:21,416 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:21,560 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:38:21,758 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:38:21,951 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:22,105 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:22,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:22,115 INFO L93 Difference]: Finished difference Result 8408 states and 21053 transitions. [2021-06-05 00:38:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:38:22,115 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:22,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:22,120 INFO L225 Difference]: With dead ends: 8408 [2021-06-05 00:38:22,120 INFO L226 Difference]: Without dead ends: 8408 [2021-06-05 00:38:22,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4446.9ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:38:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8408 states. [2021-06-05 00:38:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8408 to 4035. [2021-06-05 00:38:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4035 states, 4033 states have (on average 2.660054549962807) internal successors, (10728), 4034 states have internal predecessors, (10728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 10728 transitions. [2021-06-05 00:38:22,178 INFO L78 Accepts]: Start accepts. Automaton has 4035 states and 10728 transitions. Word has length 94 [2021-06-05 00:38:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:22,179 INFO L482 AbstractCegarLoop]: Abstraction has 4035 states and 10728 transitions. [2021-06-05 00:38:22,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4035 states and 10728 transitions. [2021-06-05 00:38:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:22,182 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:22,182 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:22,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 00:38:22,182 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:22,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1722381467, now seen corresponding path program 49 times [2021-06-05 00:38:22,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:22,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493717301] [2021-06-05 00:38:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:22,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:22,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493717301] [2021-06-05 00:38:22,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493717301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:22,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:22,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:22,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363296824] [2021-06-05 00:38:22,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:22,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:22,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:22,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:22,709 INFO L87 Difference]: Start difference. First operand 4035 states and 10728 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:24,026 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:24,169 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:24,327 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:38:24,467 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:38:24,639 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:24,826 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:25,023 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:38:25,197 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:25,408 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:38:25,740 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:38:25,894 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:38:26,037 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:38:26,219 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:38:26,358 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:38:26,505 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:38:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:26,511 INFO L93 Difference]: Finished difference Result 6865 states and 17350 transitions. [2021-06-05 00:38:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:38:26,512 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:26,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:26,517 INFO L225 Difference]: With dead ends: 6865 [2021-06-05 00:38:26,518 INFO L226 Difference]: Without dead ends: 6865 [2021-06-05 00:38:26,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3385.3ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 00:38:26,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2021-06-05 00:38:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 4023. [2021-06-05 00:38:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 4021 states have (on average 2.6590400397910967) internal successors, (10692), 4022 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 10692 transitions. [2021-06-05 00:38:26,578 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 10692 transitions. Word has length 94 [2021-06-05 00:38:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:26,578 INFO L482 AbstractCegarLoop]: Abstraction has 4023 states and 10692 transitions. [2021-06-05 00:38:26,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 10692 transitions. [2021-06-05 00:38:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:26,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:26,581 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:26,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 00:38:26,582 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:26,583 INFO L82 PathProgramCache]: Analyzing trace with hash 780592243, now seen corresponding path program 50 times [2021-06-05 00:38:26,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:26,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026968803] [2021-06-05 00:38:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:26,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:26,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026968803] [2021-06-05 00:38:26,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026968803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:26,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:26,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:38:26,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622864403] [2021-06-05 00:38:26,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:38:26,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:26,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:38:26,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:38:26,898 INFO L87 Difference]: Start difference. First operand 4023 states and 10692 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:27,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:27,838 INFO L93 Difference]: Finished difference Result 4914 states and 12432 transitions. [2021-06-05 00:38:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:38:27,838 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:27,843 INFO L225 Difference]: With dead ends: 4914 [2021-06-05 00:38:27,843 INFO L226 Difference]: Without dead ends: 4914 [2021-06-05 00:38:27,843 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 843.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:38:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4914 states. [2021-06-05 00:38:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4914 to 4067. [2021-06-05 00:38:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 4065 states have (on average 2.6563345633456334) internal successors, (10798), 4066 states have internal predecessors, (10798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 10798 transitions. [2021-06-05 00:38:27,903 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 10798 transitions. Word has length 94 [2021-06-05 00:38:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:27,903 INFO L482 AbstractCegarLoop]: Abstraction has 4067 states and 10798 transitions. [2021-06-05 00:38:27,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 10798 transitions. [2021-06-05 00:38:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:27,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:27,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:27,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 00:38:27,907 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:27,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:27,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1117322871, now seen corresponding path program 51 times [2021-06-05 00:38:27,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:27,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104775492] [2021-06-05 00:38:27,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:28,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:28,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104775492] [2021-06-05 00:38:28,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104775492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:28,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:28,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:28,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236341920] [2021-06-05 00:38:28,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:28,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:28,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:28,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:28,348 INFO L87 Difference]: Start difference. First operand 4067 states and 10798 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,346 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:29,686 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:29,847 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:38:30,031 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:38:30,226 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:30,473 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:38:30,621 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:38:30,765 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:38:30,919 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:38:31,049 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:31,197 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:38:31,356 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:38:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:31,363 INFO L93 Difference]: Finished difference Result 6685 states and 17116 transitions. [2021-06-05 00:38:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:38:31,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:31,382 INFO L225 Difference]: With dead ends: 6685 [2021-06-05 00:38:31,382 INFO L226 Difference]: Without dead ends: 6685 [2021-06-05 00:38:31,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2657.1ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:38:31,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6685 states. [2021-06-05 00:38:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6685 to 4271. [2021-06-05 00:38:31,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4271 states, 4269 states have (on average 2.6713516045912393) internal successors, (11404), 4270 states have internal predecessors, (11404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4271 states to 4271 states and 11404 transitions. [2021-06-05 00:38:31,435 INFO L78 Accepts]: Start accepts. Automaton has 4271 states and 11404 transitions. Word has length 94 [2021-06-05 00:38:31,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:31,436 INFO L482 AbstractCegarLoop]: Abstraction has 4271 states and 11404 transitions. [2021-06-05 00:38:31,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4271 states and 11404 transitions. [2021-06-05 00:38:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:31,439 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:31,439 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:31,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 00:38:31,440 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:31,440 INFO L82 PathProgramCache]: Analyzing trace with hash 982503065, now seen corresponding path program 52 times [2021-06-05 00:38:31,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:31,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618043263] [2021-06-05 00:38:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:31,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:31,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618043263] [2021-06-05 00:38:31,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618043263] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:31,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:31,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:31,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612188104] [2021-06-05 00:38:31,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:31,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:31,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:31,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:31,889 INFO L87 Difference]: Start difference. First operand 4271 states and 11404 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:32,810 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:33,001 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:38:33,337 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:38:33,518 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:38:33,720 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:33,994 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:34,160 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:38:34,329 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:34,503 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:38:34,656 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:38:34,820 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:38:35,003 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:38:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:35,010 INFO L93 Difference]: Finished difference Result 7659 states and 19487 transitions. [2021-06-05 00:38:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:38:35,010 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:35,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:35,016 INFO L225 Difference]: With dead ends: 7659 [2021-06-05 00:38:35,016 INFO L226 Difference]: Without dead ends: 7659 [2021-06-05 00:38:35,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2814.2ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:38:35,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2021-06-05 00:38:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 4307. [2021-06-05 00:38:35,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.6740998838559813) internal successors, (11512), 4306 states have internal predecessors, (11512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11512 transitions. [2021-06-05 00:38:35,077 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11512 transitions. Word has length 94 [2021-06-05 00:38:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:35,077 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11512 transitions. [2021-06-05 00:38:35,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11512 transitions. [2021-06-05 00:38:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:35,081 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:35,081 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:35,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 00:38:35,081 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash 692397687, now seen corresponding path program 53 times [2021-06-05 00:38:35,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:35,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325404886] [2021-06-05 00:38:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:35,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:35,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325404886] [2021-06-05 00:38:35,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325404886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:35,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:35,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:35,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966053830] [2021-06-05 00:38:35,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:35,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:35,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:35,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:35,557 INFO L87 Difference]: Start difference. First operand 4307 states and 11512 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:36,497 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:36,693 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:38:36,901 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:38:37,119 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:38:37,461 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:38:37,649 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:37,935 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:38:38,126 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:38:38,326 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:38:38,527 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:38:38,725 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:38,732 INFO L93 Difference]: Finished difference Result 7347 states and 18903 transitions. [2021-06-05 00:38:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:38:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:38,737 INFO L225 Difference]: With dead ends: 7347 [2021-06-05 00:38:38,737 INFO L226 Difference]: Without dead ends: 7347 [2021-06-05 00:38:38,737 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2896.6ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:38:38,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2021-06-05 00:38:38,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 4271. [2021-06-05 00:38:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4271 states, 4269 states have (on average 2.6713516045912393) internal successors, (11404), 4270 states have internal predecessors, (11404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4271 states to 4271 states and 11404 transitions. [2021-06-05 00:38:38,793 INFO L78 Accepts]: Start accepts. Automaton has 4271 states and 11404 transitions. Word has length 94 [2021-06-05 00:38:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:38,793 INFO L482 AbstractCegarLoop]: Abstraction has 4271 states and 11404 transitions. [2021-06-05 00:38:38,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4271 states and 11404 transitions. [2021-06-05 00:38:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:38,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:38,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:38,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 00:38:38,796 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:38,797 INFO L82 PathProgramCache]: Analyzing trace with hash 398173023, now seen corresponding path program 54 times [2021-06-05 00:38:38,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:38,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824894597] [2021-06-05 00:38:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:39,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:39,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824894597] [2021-06-05 00:38:39,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824894597] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:39,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:39,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:39,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564855428] [2021-06-05 00:38:39,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:39,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:39,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:39,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:39,238 INFO L87 Difference]: Start difference. First operand 4271 states and 11404 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,491 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:38:40,668 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:38:40,876 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:38:41,081 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:38:41,470 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:41,601 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:38:41,742 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:38:41,994 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:38:42,132 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:38:42,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:42,140 INFO L93 Difference]: Finished difference Result 7125 states and 18049 transitions. [2021-06-05 00:38:42,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:38:42,140 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:42,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:42,146 INFO L225 Difference]: With dead ends: 7125 [2021-06-05 00:38:42,146 INFO L226 Difference]: Without dead ends: 7125 [2021-06-05 00:38:42,146 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2558.3ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:38:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2021-06-05 00:38:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 4275. [2021-06-05 00:38:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4273 states have (on average 2.6711912005616663) internal successors, (11414), 4274 states have internal predecessors, (11414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 11414 transitions. [2021-06-05 00:38:42,206 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 11414 transitions. Word has length 94 [2021-06-05 00:38:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:42,206 INFO L482 AbstractCegarLoop]: Abstraction has 4275 states and 11414 transitions. [2021-06-05 00:38:42,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 11414 transitions. [2021-06-05 00:38:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:42,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:42,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:42,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 00:38:42,210 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:42,210 INFO L82 PathProgramCache]: Analyzing trace with hash 338504439, now seen corresponding path program 55 times [2021-06-05 00:38:42,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:42,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383985362] [2021-06-05 00:38:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:42,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:42,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383985362] [2021-06-05 00:38:42,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383985362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:42,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:42,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:42,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969708626] [2021-06-05 00:38:42,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:42,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:42,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:42,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:42,663 INFO L87 Difference]: Start difference. First operand 4275 states and 11414 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:43,901 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:44,064 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:38:44,261 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:38:44,463 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:38:44,861 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:44,993 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:38:45,134 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:38:45,386 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:38:45,536 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:38:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:45,543 INFO L93 Difference]: Finished difference Result 7209 states and 18162 transitions. [2021-06-05 00:38:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:38:45,544 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:45,548 INFO L225 Difference]: With dead ends: 7209 [2021-06-05 00:38:45,548 INFO L226 Difference]: Without dead ends: 7209 [2021-06-05 00:38:45,549 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2591.6ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:38:45,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-05 00:38:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 4277. [2021-06-05 00:38:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4275 states have (on average 2.671111111111111) internal successors, (11419), 4276 states have internal predecessors, (11419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 11419 transitions. [2021-06-05 00:38:45,605 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 11419 transitions. Word has length 94 [2021-06-05 00:38:45,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:45,605 INFO L482 AbstractCegarLoop]: Abstraction has 4277 states and 11419 transitions. [2021-06-05 00:38:45,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:45,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 11419 transitions. [2021-06-05 00:38:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:45,608 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:45,608 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:45,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 00:38:45,609 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:45,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2019518185, now seen corresponding path program 56 times [2021-06-05 00:38:45,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:45,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486097376] [2021-06-05 00:38:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:46,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:46,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486097376] [2021-06-05 00:38:46,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486097376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:46,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:46,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:46,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566008872] [2021-06-05 00:38:46,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:46,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:46,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:46,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:46,094 INFO L87 Difference]: Start difference. First operand 4277 states and 11419 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:47,323 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:47,492 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:38:47,679 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:38:47,861 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:38:48,059 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:38:48,347 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:38:48,495 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:38:48,628 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:38:48,766 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:38:49,017 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:38:49,152 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:38:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:49,159 INFO L93 Difference]: Finished difference Result 7007 states and 17758 transitions. [2021-06-05 00:38:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:38:49,159 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:49,164 INFO L225 Difference]: With dead ends: 7007 [2021-06-05 00:38:49,165 INFO L226 Difference]: Without dead ends: 7007 [2021-06-05 00:38:49,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2773.0ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:38:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2021-06-05 00:38:49,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 4275. [2021-06-05 00:38:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4273 states have (on average 2.6711912005616663) internal successors, (11414), 4274 states have internal predecessors, (11414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 11414 transitions. [2021-06-05 00:38:49,222 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 11414 transitions. Word has length 94 [2021-06-05 00:38:49,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:49,222 INFO L482 AbstractCegarLoop]: Abstraction has 4275 states and 11414 transitions. [2021-06-05 00:38:49,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 11414 transitions. [2021-06-05 00:38:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:49,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:49,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:49,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 00:38:49,226 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:49,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:49,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1815885175, now seen corresponding path program 57 times [2021-06-05 00:38:49,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:49,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501096112] [2021-06-05 00:38:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:49,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:49,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501096112] [2021-06-05 00:38:49,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501096112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:49,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:49,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:49,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622024818] [2021-06-05 00:38:49,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:49,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:49,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:49,678 INFO L87 Difference]: Start difference. First operand 4275 states and 11414 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:50,643 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:50,805 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:38:51,150 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:38:51,333 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:38:51,519 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:51,809 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:38:51,979 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:38:52,164 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:38:52,339 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:38:52,493 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:38:52,671 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:38:52,843 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:38:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:52,849 INFO L93 Difference]: Finished difference Result 8605 states and 21805 transitions. [2021-06-05 00:38:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:38:52,850 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:52,855 INFO L225 Difference]: With dead ends: 8605 [2021-06-05 00:38:52,855 INFO L226 Difference]: Without dead ends: 8605 [2021-06-05 00:38:52,855 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2837.8ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:38:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2021-06-05 00:38:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 4323. [2021-06-05 00:38:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4321 states have (on average 2.674843786160611) internal successors, (11558), 4322 states have internal predecessors, (11558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 11558 transitions. [2021-06-05 00:38:52,918 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 11558 transitions. Word has length 94 [2021-06-05 00:38:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:52,919 INFO L482 AbstractCegarLoop]: Abstraction has 4323 states and 11558 transitions. [2021-06-05 00:38:52,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 11558 transitions. [2021-06-05 00:38:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:52,922 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:52,922 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:52,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 00:38:52,922 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:52,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1525779797, now seen corresponding path program 58 times [2021-06-05 00:38:52,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:52,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826734202] [2021-06-05 00:38:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:53,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:53,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826734202] [2021-06-05 00:38:53,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826734202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:53,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:53,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:53,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57904701] [2021-06-05 00:38:53,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:53,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:53,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:53,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:53,393 INFO L87 Difference]: Start difference. First operand 4323 states and 11558 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:54,362 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:54,527 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:38:54,729 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:38:54,946 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:38:55,294 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:38:55,483 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:55,792 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:38:55,979 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:38:56,186 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:38:56,382 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:38:56,576 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:38:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:56,583 INFO L93 Difference]: Finished difference Result 9279 states and 23601 transitions. [2021-06-05 00:38:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:38:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:38:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:56,591 INFO L225 Difference]: With dead ends: 9279 [2021-06-05 00:38:56,591 INFO L226 Difference]: Without dead ends: 9279 [2021-06-05 00:38:56,591 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2853.2ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:38:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2021-06-05 00:38:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 4287. [2021-06-05 00:38:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6721120186697784) internal successors, (11450), 4286 states have internal predecessors, (11450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11450 transitions. [2021-06-05 00:38:56,665 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11450 transitions. Word has length 94 [2021-06-05 00:38:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:56,665 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11450 transitions. [2021-06-05 00:38:56,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11450 transitions. [2021-06-05 00:38:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:38:56,668 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:56,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:56,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 00:38:56,669 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:38:56,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:56,669 INFO L82 PathProgramCache]: Analyzing trace with hash -371436355, now seen corresponding path program 59 times [2021-06-05 00:38:56,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:56,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056566805] [2021-06-05 00:38:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:57,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:57,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056566805] [2021-06-05 00:38:57,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056566805] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:57,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:57,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:38:57,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972978384] [2021-06-05 00:38:57,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:38:57,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:57,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:38:57,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:38:57,129 INFO L87 Difference]: Start difference. First operand 4287 states and 11450 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:58,095 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:38:58,431 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:38:58,588 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:38:58,782 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:38:58,980 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:38:59,283 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:38:59,441 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:38:59,606 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:38:59,766 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:38:59,903 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:00,057 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:39:00,217 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:39:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:00,226 INFO L93 Difference]: Finished difference Result 8229 states and 20813 transitions. [2021-06-05 00:39:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:00,227 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:00,232 INFO L225 Difference]: With dead ends: 8229 [2021-06-05 00:39:00,232 INFO L226 Difference]: Without dead ends: 8229 [2021-06-05 00:39:00,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2728.7ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2021-06-05 00:39:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 4289. [2021-06-05 00:39:00,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4287 states have (on average 2.6720317238161884) internal successors, (11455), 4288 states have internal predecessors, (11455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:00,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 11455 transitions. [2021-06-05 00:39:00,292 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 11455 transitions. Word has length 94 [2021-06-05 00:39:00,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:00,292 INFO L482 AbstractCegarLoop]: Abstraction has 4289 states and 11455 transitions. [2021-06-05 00:39:00,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 11455 transitions. [2021-06-05 00:39:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:00,296 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:00,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:00,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 00:39:00,296 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1397099399, now seen corresponding path program 60 times [2021-06-05 00:39:00,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:00,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386110811] [2021-06-05 00:39:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:00,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:00,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386110811] [2021-06-05 00:39:00,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386110811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:00,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:00,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:00,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247259630] [2021-06-05 00:39:00,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:00,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:00,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:00,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:00,764 INFO L87 Difference]: Start difference. First operand 4289 states and 11455 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:01,715 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:02,058 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:02,224 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:39:02,403 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:39:02,568 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:02,761 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:03,065 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:39:03,218 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:39:03,382 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:39:03,557 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:39:03,696 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:03,850 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:39:04,007 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:39:04,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:04,013 INFO L93 Difference]: Finished difference Result 8211 states and 20775 transitions. [2021-06-05 00:39:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:04,014 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:04,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:04,021 INFO L225 Difference]: With dead ends: 8211 [2021-06-05 00:39:04,021 INFO L226 Difference]: Without dead ends: 8211 [2021-06-05 00:39:04,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2895.4ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2021-06-05 00:39:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 4287. [2021-06-05 00:39:04,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6721120186697784) internal successors, (11450), 4286 states have internal predecessors, (11450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:04,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11450 transitions. [2021-06-05 00:39:04,090 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11450 transitions. Word has length 94 [2021-06-05 00:39:04,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:04,090 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11450 transitions. [2021-06-05 00:39:04,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11450 transitions. [2021-06-05 00:39:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:04,093 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:04,094 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:04,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 00:39:04,094 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:04,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:04,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2072286407, now seen corresponding path program 61 times [2021-06-05 00:39:04,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:04,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951777389] [2021-06-05 00:39:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:04,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:04,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951777389] [2021-06-05 00:39:04,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951777389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:04,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:04,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:04,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407844783] [2021-06-05 00:39:04,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:04,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:04,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:04,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:04,607 INFO L87 Difference]: Start difference. First operand 4287 states and 11450 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:05,435 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-06-05 00:39:05,624 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:05,810 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:39:06,006 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-06-05 00:39:06,170 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:39:06,397 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-06-05 00:39:06,824 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-06-05 00:39:07,007 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:07,203 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:39:07,570 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 00:39:07,753 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-05 00:39:07,925 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:39:08,118 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-06-05 00:39:08,300 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:39:08,522 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-06-05 00:39:08,699 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 00:39:08,887 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:39:09,067 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:09,264 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:39:09,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:09,273 INFO L93 Difference]: Finished difference Result 8584 states and 21804 transitions. [2021-06-05 00:39:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:09,274 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:09,279 INFO L225 Difference]: With dead ends: 8584 [2021-06-05 00:39:09,279 INFO L226 Difference]: Without dead ends: 8584 [2021-06-05 00:39:09,279 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4174.0ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:39:09,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8584 states. [2021-06-05 00:39:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8584 to 4299. [2021-06-05 00:39:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.6730276937398183) internal successors, (11486), 4298 states have internal predecessors, (11486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11486 transitions. [2021-06-05 00:39:09,339 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11486 transitions. Word has length 94 [2021-06-05 00:39:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:09,339 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11486 transitions. [2021-06-05 00:39:09,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11486 transitions. [2021-06-05 00:39:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:09,342 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:09,343 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:09,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 00:39:09,343 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:09,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1184860991, now seen corresponding path program 62 times [2021-06-05 00:39:09,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:09,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300090365] [2021-06-05 00:39:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:09,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:09,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300090365] [2021-06-05 00:39:09,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300090365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:09,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:09,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:09,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044378445] [2021-06-05 00:39:09,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:09,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:09,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:09,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:09,845 INFO L87 Difference]: Start difference. First operand 4299 states and 11486 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,790 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:10,962 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:39:11,148 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:39:11,506 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:39:11,686 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:39:11,853 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:12,063 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:12,401 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 00:39:12,574 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:39:12,754 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:39:12,913 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:39:13,098 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 00:39:13,273 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:13,280 INFO L93 Difference]: Finished difference Result 7753 states and 19723 transitions. [2021-06-05 00:39:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:13,286 INFO L225 Difference]: With dead ends: 7753 [2021-06-05 00:39:13,286 INFO L226 Difference]: Without dead ends: 7753 [2021-06-05 00:39:13,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3124.2ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2021-06-05 00:39:13,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 4275. [2021-06-05 00:39:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4273 states have (on average 2.6711912005616663) internal successors, (11414), 4274 states have internal predecessors, (11414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 11414 transitions. [2021-06-05 00:39:13,349 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 11414 transitions. Word has length 94 [2021-06-05 00:39:13,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:13,349 INFO L482 AbstractCegarLoop]: Abstraction has 4275 states and 11414 transitions. [2021-06-05 00:39:13,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 11414 transitions. [2021-06-05 00:39:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:13,353 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:13,353 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:13,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 00:39:13,353 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:13,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:13,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1162417289, now seen corresponding path program 63 times [2021-06-05 00:39:13,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:13,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525841404] [2021-06-05 00:39:13,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:13,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:13,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525841404] [2021-06-05 00:39:13,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525841404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:13,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:13,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:13,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108956921] [2021-06-05 00:39:13,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:13,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:13,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:13,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:13,821 INFO L87 Difference]: Start difference. First operand 4275 states and 11414 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:15,014 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:39:15,193 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:39:15,389 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:39:15,594 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:39:15,970 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:39:16,231 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:16,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:16,596 INFO L93 Difference]: Finished difference Result 7263 states and 18379 transitions. [2021-06-05 00:39:16,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:16,596 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:16,601 INFO L225 Difference]: With dead ends: 7263 [2021-06-05 00:39:16,602 INFO L226 Difference]: Without dead ends: 7263 [2021-06-05 00:39:16,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2502.7ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7263 states. [2021-06-05 00:39:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7263 to 4287. [2021-06-05 00:39:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6707117852975495) internal successors, (11444), 4286 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11444 transitions. [2021-06-05 00:39:16,660 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11444 transitions. Word has length 94 [2021-06-05 00:39:16,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:16,660 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11444 transitions. [2021-06-05 00:39:16,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11444 transitions. [2021-06-05 00:39:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:16,664 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:16,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:16,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 00:39:16,664 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1222085873, now seen corresponding path program 64 times [2021-06-05 00:39:16,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:16,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637838051] [2021-06-05 00:39:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:17,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:17,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637838051] [2021-06-05 00:39:17,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637838051] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:17,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:17,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:17,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810413016] [2021-06-05 00:39:17,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:17,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:17,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:17,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:17,111 INFO L87 Difference]: Start difference. First operand 4287 states and 11444 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:18,328 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:18,516 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:39:18,720 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:39:18,927 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:39:19,572 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:19,929 INFO L93 Difference]: Finished difference Result 7741 states and 19315 transitions. [2021-06-05 00:39:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:19,929 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:19,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:19,935 INFO L225 Difference]: With dead ends: 7741 [2021-06-05 00:39:19,935 INFO L226 Difference]: Without dead ends: 7741 [2021-06-05 00:39:19,935 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2503.2ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7741 states. [2021-06-05 00:39:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7741 to 4289. [2021-06-05 00:39:19,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4287 states have (on average 2.6706321436902263) internal successors, (11449), 4288 states have internal predecessors, (11449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 11449 transitions. [2021-06-05 00:39:20,000 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 11449 transitions. Word has length 94 [2021-06-05 00:39:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:20,000 INFO L482 AbstractCegarLoop]: Abstraction has 4289 states and 11449 transitions. [2021-06-05 00:39:20,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 11449 transitions. [2021-06-05 00:39:20,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:20,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:20,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:20,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 00:39:20,004 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:20,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:20,004 INFO L82 PathProgramCache]: Analyzing trace with hash 458927873, now seen corresponding path program 65 times [2021-06-05 00:39:20,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:20,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239799724] [2021-06-05 00:39:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:20,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:20,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239799724] [2021-06-05 00:39:20,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239799724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:20,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:20,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:20,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296819656] [2021-06-05 00:39:20,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:20,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:20,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:20,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:20,478 INFO L87 Difference]: Start difference. First operand 4289 states and 11449 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:21,709 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:21,887 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:39:22,112 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:39:22,294 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:22,503 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:23,180 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:23,423 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:39:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:23,557 INFO L93 Difference]: Finished difference Result 7539 states and 18911 transitions. [2021-06-05 00:39:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:23,557 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:23,563 INFO L225 Difference]: With dead ends: 7539 [2021-06-05 00:39:23,563 INFO L226 Difference]: Without dead ends: 7539 [2021-06-05 00:39:23,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2703.1ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2021-06-05 00:39:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 4283. [2021-06-05 00:39:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 2.670871291754263) internal successors, (11434), 4282 states have internal predecessors, (11434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 11434 transitions. [2021-06-05 00:39:23,620 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 11434 transitions. Word has length 94 [2021-06-05 00:39:23,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:23,620 INFO L482 AbstractCegarLoop]: Abstraction has 4283 states and 11434 transitions. [2021-06-05 00:39:23,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 11434 transitions. [2021-06-05 00:39:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:23,624 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:23,624 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:23,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 00:39:23,624 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:23,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:23,624 INFO L82 PathProgramCache]: Analyzing trace with hash -974517769, now seen corresponding path program 66 times [2021-06-05 00:39:23,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:23,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877828673] [2021-06-05 00:39:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:24,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:24,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877828673] [2021-06-05 00:39:24,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877828673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:24,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:24,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:24,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32322393] [2021-06-05 00:39:24,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:24,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:24,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:24,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:24,075 INFO L87 Difference]: Start difference. First operand 4283 states and 11434 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:25,157 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:39:25,321 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:25,490 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:39:25,711 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:39:25,917 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:39:26,438 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:39:26,564 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:26,794 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:39:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:26,930 INFO L93 Difference]: Finished difference Result 7373 states and 18541 transitions. [2021-06-05 00:39:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:26,931 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:26,936 INFO L225 Difference]: With dead ends: 7373 [2021-06-05 00:39:26,936 INFO L226 Difference]: Without dead ends: 7373 [2021-06-05 00:39:26,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2512.3ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7373 states. [2021-06-05 00:39:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7373 to 4289. [2021-06-05 00:39:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4287 states have (on average 2.6706321436902263) internal successors, (11449), 4288 states have internal predecessors, (11449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 11449 transitions. [2021-06-05 00:39:26,997 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 11449 transitions. Word has length 94 [2021-06-05 00:39:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:26,997 INFO L482 AbstractCegarLoop]: Abstraction has 4289 states and 11449 transitions. [2021-06-05 00:39:26,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 11449 transitions. [2021-06-05 00:39:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:27,001 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:27,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:27,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 00:39:27,001 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash 706495977, now seen corresponding path program 67 times [2021-06-05 00:39:27,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:27,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301420299] [2021-06-05 00:39:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:27,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:27,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301420299] [2021-06-05 00:39:27,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301420299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:27,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:27,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:27,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007618630] [2021-06-05 00:39:27,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:27,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:27,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:27,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:27,475 INFO L87 Difference]: Start difference. First operand 4289 states and 11449 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:28,610 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:39:28,774 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:28,952 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:29,162 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:39:29,329 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:29,539 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:30,210 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:30,570 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 00:39:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:30,577 INFO L93 Difference]: Finished difference Result 7647 states and 19068 transitions. [2021-06-05 00:39:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:30,577 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:30,582 INFO L225 Difference]: With dead ends: 7647 [2021-06-05 00:39:30,582 INFO L226 Difference]: Without dead ends: 7647 [2021-06-05 00:39:30,582 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2699.7ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2021-06-05 00:39:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 4287. [2021-06-05 00:39:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6707117852975495) internal successors, (11444), 4286 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11444 transitions. [2021-06-05 00:39:30,639 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11444 transitions. Word has length 94 [2021-06-05 00:39:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:30,639 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11444 transitions. [2021-06-05 00:39:30,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11444 transitions. [2021-06-05 00:39:30,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:30,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:30,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:30,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 00:39:30,643 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:30,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1796789299, now seen corresponding path program 68 times [2021-06-05 00:39:30,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:30,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605859221] [2021-06-05 00:39:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:31,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:31,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605859221] [2021-06-05 00:39:31,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605859221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:31,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:31,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:31,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698832925] [2021-06-05 00:39:31,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:31,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:31,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:31,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:31,113 INFO L87 Difference]: Start difference. First operand 4287 states and 11444 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:32,196 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:39:32,353 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:39:32,518 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:39:32,685 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:32,900 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:39:33,068 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:33,279 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:33,937 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-06-05 00:39:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:34,302 INFO L93 Difference]: Finished difference Result 7169 states and 18132 transitions. [2021-06-05 00:39:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:39:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:34,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:34,308 INFO L225 Difference]: With dead ends: 7169 [2021-06-05 00:39:34,308 INFO L226 Difference]: Without dead ends: 7169 [2021-06-05 00:39:34,308 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2840.6ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:39:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2021-06-05 00:39:34,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 4283. [2021-06-05 00:39:34,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 2.670871291754263) internal successors, (11434), 4282 states have internal predecessors, (11434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 11434 transitions. [2021-06-05 00:39:34,367 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 11434 transitions. Word has length 94 [2021-06-05 00:39:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:34,367 INFO L482 AbstractCegarLoop]: Abstraction has 4283 states and 11434 transitions. [2021-06-05 00:39:34,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:34,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 11434 transitions. [2021-06-05 00:39:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:34,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:34,370 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:34,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 00:39:34,370 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:34,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:34,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1422080281, now seen corresponding path program 69 times [2021-06-05 00:39:34,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:34,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122594487] [2021-06-05 00:39:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:34,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:34,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122594487] [2021-06-05 00:39:34,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122594487] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:34,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:34,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:34,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060625784] [2021-06-05 00:39:34,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:34,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:34,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:34,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:34,854 INFO L87 Difference]: Start difference. First operand 4283 states and 11434 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:35,854 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:36,027 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:39:36,410 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:39:36,601 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:39:36,793 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:39:37,095 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:37,260 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:39:37,456 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:37,635 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:39:37,806 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:39:37,973 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:39:38,143 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:39:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:38,150 INFO L93 Difference]: Finished difference Result 8967 states and 22776 transitions. [2021-06-05 00:39:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:38,155 INFO L225 Difference]: With dead ends: 8967 [2021-06-05 00:39:38,156 INFO L226 Difference]: Without dead ends: 8967 [2021-06-05 00:39:38,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2902.0ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8967 states. [2021-06-05 00:39:38,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8967 to 4355. [2021-06-05 00:39:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 4353 states have (on average 2.6763151849299334) internal successors, (11650), 4354 states have internal predecessors, (11650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 11650 transitions. [2021-06-05 00:39:38,219 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 11650 transitions. Word has length 94 [2021-06-05 00:39:38,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:38,219 INFO L482 AbstractCegarLoop]: Abstraction has 4355 states and 11650 transitions. [2021-06-05 00:39:38,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 11650 transitions. [2021-06-05 00:39:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:38,223 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:38,223 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:38,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 00:39:38,223 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:38,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1131974903, now seen corresponding path program 70 times [2021-06-05 00:39:38,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:38,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421635337] [2021-06-05 00:39:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:38,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:38,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421635337] [2021-06-05 00:39:38,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421635337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:38,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:38,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:38,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576334684] [2021-06-05 00:39:38,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:38,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:38,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:38,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:38,678 INFO L87 Difference]: Start difference. First operand 4355 states and 11650 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:39,625 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:39,795 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:39:40,007 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:39:40,214 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:39:40,649 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:39:40,840 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:39:41,130 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:39:41,428 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:39:41,625 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:39:41,813 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:39:42,011 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:39:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:42,017 INFO L93 Difference]: Finished difference Result 9641 states and 24572 transitions. [2021-06-05 00:39:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:39:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:42,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:42,026 INFO L225 Difference]: With dead ends: 9641 [2021-06-05 00:39:42,026 INFO L226 Difference]: Without dead ends: 9641 [2021-06-05 00:39:42,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2956.3ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:39:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2021-06-05 00:39:42,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 4319. [2021-06-05 00:39:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4319 states, 4317 states have (on average 2.6736159369932824) internal successors, (11542), 4318 states have internal predecessors, (11542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4319 states to 4319 states and 11542 transitions. [2021-06-05 00:39:42,102 INFO L78 Accepts]: Start accepts. Automaton has 4319 states and 11542 transitions. Word has length 94 [2021-06-05 00:39:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:42,102 INFO L482 AbstractCegarLoop]: Abstraction has 4319 states and 11542 transitions. [2021-06-05 00:39:42,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 4319 states and 11542 transitions. [2021-06-05 00:39:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:42,106 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:42,106 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:42,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 00:39:42,106 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:42,106 INFO L82 PathProgramCache]: Analyzing trace with hash -765241249, now seen corresponding path program 71 times [2021-06-05 00:39:42,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:42,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366185864] [2021-06-05 00:39:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:42,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:42,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366185864] [2021-06-05 00:39:42,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366185864] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:42,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:42,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:42,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446442254] [2021-06-05 00:39:42,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:42,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:42,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:42,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:42,565 INFO L87 Difference]: Start difference. First operand 4319 states and 11542 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:43,507 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:43,826 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:43,983 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:39:44,175 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:39:44,370 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:39:44,654 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:39:44,805 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:39:44,971 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:39:45,132 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:39:45,267 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:45,420 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:39:45,583 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:39:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:45,593 INFO L93 Difference]: Finished difference Result 9415 states and 23775 transitions. [2021-06-05 00:39:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:39:45,594 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:45,600 INFO L225 Difference]: With dead ends: 9415 [2021-06-05 00:39:45,600 INFO L226 Difference]: Without dead ends: 9415 [2021-06-05 00:39:45,600 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2736.7ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:39:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9415 states. [2021-06-05 00:39:45,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9415 to 4321. [2021-06-05 00:39:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 4319 states have (on average 2.673535540634406) internal successors, (11547), 4320 states have internal predecessors, (11547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 11547 transitions. [2021-06-05 00:39:45,668 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 11547 transitions. Word has length 94 [2021-06-05 00:39:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:45,668 INFO L482 AbstractCegarLoop]: Abstraction has 4321 states and 11547 transitions. [2021-06-05 00:39:45,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 11547 transitions. [2021-06-05 00:39:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:45,671 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:45,671 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:45,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 00:39:45,672 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:45,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1003294505, now seen corresponding path program 72 times [2021-06-05 00:39:45,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:45,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586244462] [2021-06-05 00:39:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:46,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:46,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586244462] [2021-06-05 00:39:46,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586244462] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:46,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:46,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:46,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922403271] [2021-06-05 00:39:46,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:46,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:46,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:46,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:46,129 INFO L87 Difference]: Start difference. First operand 4321 states and 11547 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,089 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:47,408 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:47,572 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:47,754 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:39:47,923 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:48,121 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:48,457 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:39:48,609 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:39:48,761 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:39:48,921 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:39:49,061 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:39:49,212 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:39:49,366 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:39:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:49,372 INFO L93 Difference]: Finished difference Result 9397 states and 23737 transitions. [2021-06-05 00:39:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:49,381 INFO L225 Difference]: With dead ends: 9397 [2021-06-05 00:39:49,381 INFO L226 Difference]: Without dead ends: 9397 [2021-06-05 00:39:49,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2918.1ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:49,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9397 states. [2021-06-05 00:39:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9397 to 4319. [2021-06-05 00:39:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4319 states, 4317 states have (on average 2.6736159369932824) internal successors, (11542), 4318 states have internal predecessors, (11542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4319 states to 4319 states and 11542 transitions. [2021-06-05 00:39:49,465 INFO L78 Accepts]: Start accepts. Automaton has 4319 states and 11542 transitions. Word has length 94 [2021-06-05 00:39:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:49,465 INFO L482 AbstractCegarLoop]: Abstraction has 4319 states and 11542 transitions. [2021-06-05 00:39:49,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4319 states and 11542 transitions. [2021-06-05 00:39:49,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:49,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:49,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:49,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 00:39:49,469 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:49,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1678481513, now seen corresponding path program 73 times [2021-06-05 00:39:49,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:49,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214938635] [2021-06-05 00:39:49,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:49,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:49,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214938635] [2021-06-05 00:39:49,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214938635] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:49,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:49,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:49,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511961825] [2021-06-05 00:39:49,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:49,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:49,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:49,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:49,958 INFO L87 Difference]: Start difference. First operand 4319 states and 11542 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:50,931 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:51,116 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:39:51,314 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:39:51,475 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:39:51,685 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:39:52,104 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:39:52,271 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:52,486 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:39:52,826 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:39:53,014 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:39:53,200 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:39:53,393 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:39:53,575 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:39:53,784 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:39:53,961 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:39:54,153 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:39:54,343 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:54,526 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:39:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:54,535 INFO L93 Difference]: Finished difference Result 10858 states and 27417 transitions. [2021-06-05 00:39:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:54,543 INFO L225 Difference]: With dead ends: 10858 [2021-06-05 00:39:54,543 INFO L226 Difference]: Without dead ends: 10858 [2021-06-05 00:39:54,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4115.2ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:39:54,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2021-06-05 00:39:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 4331. [2021-06-05 00:39:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4329 states have (on average 2.6745206745206747) internal successors, (11578), 4330 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 11578 transitions. [2021-06-05 00:39:54,618 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 11578 transitions. Word has length 94 [2021-06-05 00:39:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:54,618 INFO L482 AbstractCegarLoop]: Abstraction has 4331 states and 11578 transitions. [2021-06-05 00:39:54,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 11578 transitions. [2021-06-05 00:39:54,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:54,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:54,622 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:54,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 00:39:54,622 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:54,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:54,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1578665885, now seen corresponding path program 74 times [2021-06-05 00:39:54,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:54,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624015066] [2021-06-05 00:39:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:55,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:55,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624015066] [2021-06-05 00:39:55,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624015066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:55,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:55,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:55,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032841044] [2021-06-05 00:39:55,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:55,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:55,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:55,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:55,097 INFO L87 Difference]: Start difference. First operand 4331 states and 11578 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:56,081 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:39:56,258 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:39:56,451 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:39:56,802 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:56,981 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:39:57,148 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:57,353 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:39:57,692 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:39:57,866 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:39:58,048 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:39:58,206 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:39:58,393 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:39:58,573 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:39:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:58,580 INFO L93 Difference]: Finished difference Result 10027 states and 25336 transitions. [2021-06-05 00:39:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:39:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:39:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:58,589 INFO L225 Difference]: With dead ends: 10027 [2021-06-05 00:39:58,589 INFO L226 Difference]: Without dead ends: 10027 [2021-06-05 00:39:58,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3092.4ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:39:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10027 states. [2021-06-05 00:39:58,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10027 to 4307. [2021-06-05 00:39:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.672706155632985) internal successors, (11506), 4306 states have internal predecessors, (11506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11506 transitions. [2021-06-05 00:39:58,667 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11506 transitions. Word has length 94 [2021-06-05 00:39:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:58,668 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11506 transitions. [2021-06-05 00:39:58,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11506 transitions. [2021-06-05 00:39:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:39:58,671 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:58,671 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:58,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 00:39:58,671 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:39:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:58,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1551607467, now seen corresponding path program 75 times [2021-06-05 00:39:58,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:58,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654092740] [2021-06-05 00:39:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:59,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:59,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654092740] [2021-06-05 00:39:59,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654092740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:59,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:59,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:39:59,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978517074] [2021-06-05 00:39:59,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:39:59,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:59,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:39:59,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:39:59,134 INFO L87 Difference]: Start difference. First operand 4307 states and 11506 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:00,239 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:00,388 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:00,549 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:40:00,747 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:40:00,949 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:40:01,250 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:40:01,392 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:40:01,533 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:40:01,680 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:40:01,802 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:01,948 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:40:02,096 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:40:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:02,105 INFO L93 Difference]: Finished difference Result 8589 states and 21753 transitions. [2021-06-05 00:40:02,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:40:02,105 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:02,111 INFO L225 Difference]: With dead ends: 8589 [2021-06-05 00:40:02,111 INFO L226 Difference]: Without dead ends: 8589 [2021-06-05 00:40:02,111 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2617.7ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:40:02,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8589 states. [2021-06-05 00:40:02,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8589 to 4313. [2021-06-05 00:40:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4311 states have (on average 2.6724657852006497) internal successors, (11521), 4312 states have internal predecessors, (11521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 11521 transitions. [2021-06-05 00:40:02,176 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 11521 transitions. Word has length 94 [2021-06-05 00:40:02,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:02,176 INFO L482 AbstractCegarLoop]: Abstraction has 4313 states and 11521 transitions. [2021-06-05 00:40:02,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 11521 transitions. [2021-06-05 00:40:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:02,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:02,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:02,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 00:40:02,180 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:02,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 216928287, now seen corresponding path program 76 times [2021-06-05 00:40:02,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:02,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85359168] [2021-06-05 00:40:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:02,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:02,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85359168] [2021-06-05 00:40:02,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85359168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:02,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:02,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:02,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290008555] [2021-06-05 00:40:02,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:02,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:02,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:02,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:02,641 INFO L87 Difference]: Start difference. First operand 4313 states and 11521 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:03,783 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:03,943 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:04,142 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:04,354 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:04,560 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:04,796 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:05,151 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:40:05,334 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:40:05,485 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:40:05,648 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:40:05,776 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:05,919 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:40:06,083 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:40:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:06,093 INFO L93 Difference]: Finished difference Result 8863 states and 22280 transitions. [2021-06-05 00:40:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:40:06,094 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:06,102 INFO L225 Difference]: With dead ends: 8863 [2021-06-05 00:40:06,102 INFO L226 Difference]: Without dead ends: 8863 [2021-06-05 00:40:06,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3033.5ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:40:06,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8863 states. [2021-06-05 00:40:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8863 to 4311. [2021-06-05 00:40:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 4309 states have (on average 2.6725458343003017) internal successors, (11516), 4310 states have internal predecessors, (11516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 11516 transitions. [2021-06-05 00:40:06,194 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 11516 transitions. Word has length 94 [2021-06-05 00:40:06,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:06,195 INFO L482 AbstractCegarLoop]: Abstraction has 4311 states and 11516 transitions. [2021-06-05 00:40:06,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 11516 transitions. [2021-06-05 00:40:06,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:06,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:06,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:06,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 00:40:06,198 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash -318323883, now seen corresponding path program 77 times [2021-06-05 00:40:06,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:06,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654588166] [2021-06-05 00:40:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:06,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:06,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654588166] [2021-06-05 00:40:06,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654588166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:06,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:06,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:06,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899269602] [2021-06-05 00:40:06,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:06,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:06,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:06,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:06,701 INFO L87 Difference]: Start difference. First operand 4311 states and 11516 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:07,292 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-06-05 00:40:07,905 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:08,089 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:08,259 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:08,431 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:08,631 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:08,859 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:09,078 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:09,404 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:40:09,557 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:40:09,700 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:40:09,862 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:40:09,991 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:10,132 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:40:10,274 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:40:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:10,281 INFO L93 Difference]: Finished difference Result 8613 states and 21806 transitions. [2021-06-05 00:40:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:40:10,281 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:10,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:10,287 INFO L225 Difference]: With dead ends: 8613 [2021-06-05 00:40:10,287 INFO L226 Difference]: Without dead ends: 8613 [2021-06-05 00:40:10,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3202.2ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:40:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8613 states. [2021-06-05 00:40:10,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8613 to 4307. [2021-06-05 00:40:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.672706155632985) internal successors, (11506), 4306 states have internal predecessors, (11506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11506 transitions. [2021-06-05 00:40:10,355 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11506 transitions. Word has length 94 [2021-06-05 00:40:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:10,355 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11506 transitions. [2021-06-05 00:40:10,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11506 transitions. [2021-06-05 00:40:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:10,359 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:10,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:10,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 00:40:10,359 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1478343731, now seen corresponding path program 78 times [2021-06-05 00:40:10,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:10,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335861197] [2021-06-05 00:40:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:10,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:10,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335861197] [2021-06-05 00:40:10,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335861197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:10,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:10,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:10,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202760597] [2021-06-05 00:40:10,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:10,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:10,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:10,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:10,863 INFO L87 Difference]: Start difference. First operand 4307 states and 11506 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:11,880 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:12,113 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:40:12,330 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:40:12,558 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:40:12,748 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:40:12,982 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:40:13,410 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:13,659 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:40:13,861 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:14,138 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:40:14,526 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:40:14,748 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:40:14,908 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:40:15,111 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:40:15,280 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:40:15,490 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:40:15,671 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:40:15,863 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:40:16,029 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:16,215 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:40:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:16,225 INFO L93 Difference]: Finished difference Result 8975 states and 22828 transitions. [2021-06-05 00:40:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:40:16,226 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:16,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:16,232 INFO L225 Difference]: With dead ends: 8975 [2021-06-05 00:40:16,232 INFO L226 Difference]: Without dead ends: 8975 [2021-06-05 00:40:16,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4753.9ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:40:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8975 states. [2021-06-05 00:40:16,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8975 to 4343. [2021-06-05 00:40:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4341 states have (on average 2.6754204100437686) internal successors, (11614), 4342 states have internal predecessors, (11614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 11614 transitions. [2021-06-05 00:40:16,301 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 11614 transitions. Word has length 94 [2021-06-05 00:40:16,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:16,301 INFO L482 AbstractCegarLoop]: Abstraction has 4343 states and 11614 transitions. [2021-06-05 00:40:16,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 11614 transitions. [2021-06-05 00:40:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:16,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:16,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:16,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 00:40:16,305 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:16,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1778803667, now seen corresponding path program 79 times [2021-06-05 00:40:16,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:16,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417349274] [2021-06-05 00:40:16,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:16,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:16,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417349274] [2021-06-05 00:40:16,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417349274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:16,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:16,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:16,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531982854] [2021-06-05 00:40:16,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:16,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:16,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:16,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:16,827 INFO L87 Difference]: Start difference. First operand 4343 states and 11614 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:17,638 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:40:17,813 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:17,993 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:40:18,173 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:40:18,390 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:40:18,805 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:18,991 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:19,195 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:19,380 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:19,617 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:19,993 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:40:20,164 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:40:20,328 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:40:20,521 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:40:20,714 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:40:20,904 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:40:21,075 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:21,235 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:40:21,432 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:40:21,596 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:21,772 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:21,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:21,782 INFO L93 Difference]: Finished difference Result 9244 states and 23288 transitions. [2021-06-05 00:40:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:40:21,782 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:21,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:21,788 INFO L225 Difference]: With dead ends: 9244 [2021-06-05 00:40:21,788 INFO L226 Difference]: Without dead ends: 9244 [2021-06-05 00:40:21,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4392.8ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:40:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2021-06-05 00:40:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 4331. [2021-06-05 00:40:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4329 states have (on average 2.6745206745206747) internal successors, (11578), 4330 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 11578 transitions. [2021-06-05 00:40:21,854 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 11578 transitions. Word has length 94 [2021-06-05 00:40:21,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:21,854 INFO L482 AbstractCegarLoop]: Abstraction has 4331 states and 11578 transitions. [2021-06-05 00:40:21,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 11578 transitions. [2021-06-05 00:40:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:21,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:21,857 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:21,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 00:40:21,858 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:21,858 INFO L82 PathProgramCache]: Analyzing trace with hash 551134327, now seen corresponding path program 80 times [2021-06-05 00:40:21,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:21,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828473922] [2021-06-05 00:40:21,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:22,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:22,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828473922] [2021-06-05 00:40:22,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828473922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:22,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:22,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:22,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231697059] [2021-06-05 00:40:22,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:22,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:22,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:22,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:22,392 INFO L87 Difference]: Start difference. First operand 4331 states and 11578 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:23,270 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:40:23,437 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:23,618 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:40:24,050 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:24,215 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:24,379 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:24,576 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:24,751 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:24,985 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:25,345 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:40:25,506 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:40:25,676 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:40:25,832 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:26,013 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:40:26,216 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:26,224 INFO L93 Difference]: Finished difference Result 8071 states and 20541 transitions. [2021-06-05 00:40:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:40:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:26,231 INFO L225 Difference]: With dead ends: 8071 [2021-06-05 00:40:26,231 INFO L226 Difference]: Without dead ends: 8071 [2021-06-05 00:40:26,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3335.1ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:40:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2021-06-05 00:40:26,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 4283. [2021-06-05 00:40:26,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 2.670871291754263) internal successors, (11434), 4282 states have internal predecessors, (11434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 11434 transitions. [2021-06-05 00:40:26,327 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 11434 transitions. Word has length 94 [2021-06-05 00:40:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:26,327 INFO L482 AbstractCegarLoop]: Abstraction has 4283 states and 11434 transitions. [2021-06-05 00:40:26,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 11434 transitions. [2021-06-05 00:40:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:26,331 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:26,331 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:26,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 00:40:26,331 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:26,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1575412215, now seen corresponding path program 81 times [2021-06-05 00:40:26,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:26,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429639658] [2021-06-05 00:40:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:26,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:26,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429639658] [2021-06-05 00:40:26,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429639658] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:26,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:26,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:26,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369807661] [2021-06-05 00:40:26,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:26,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:26,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:26,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:26,848 INFO L87 Difference]: Start difference. First operand 4283 states and 11434 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:28,121 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:40:28,327 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:40:28,542 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:40:28,760 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:40:29,055 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-06-05 00:40:29,439 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 00:40:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:29,793 INFO L93 Difference]: Finished difference Result 7401 states and 18709 transitions. [2021-06-05 00:40:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:40:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:29,799 INFO L225 Difference]: With dead ends: 7401 [2021-06-05 00:40:29,799 INFO L226 Difference]: Without dead ends: 7401 [2021-06-05 00:40:29,799 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2592.3ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:40:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2021-06-05 00:40:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 4299. [2021-06-05 00:40:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.670235047707703) internal successors, (11474), 4298 states have internal predecessors, (11474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11474 transitions. [2021-06-05 00:40:29,857 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11474 transitions. Word has length 94 [2021-06-05 00:40:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:29,857 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11474 transitions. [2021-06-05 00:40:29,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11474 transitions. [2021-06-05 00:40:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:29,861 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:29,861 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:29,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 00:40:29,861 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:29,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1515743631, now seen corresponding path program 82 times [2021-06-05 00:40:29,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:29,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820741886] [2021-06-05 00:40:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:30,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:30,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820741886] [2021-06-05 00:40:30,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820741886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:30,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:30,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:30,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233183217] [2021-06-05 00:40:30,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:30,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:30,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:30,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:30,347 INFO L87 Difference]: Start difference. First operand 4299 states and 11474 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:31,301 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-06-05 00:40:31,461 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 00:40:31,620 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:31,790 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:40:31,996 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:40:32,211 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:40:32,700 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-06-05 00:40:33,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:33,274 INFO L93 Difference]: Finished difference Result 7879 states and 19645 transitions. [2021-06-05 00:40:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:40:33,275 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:33,281 INFO L225 Difference]: With dead ends: 7879 [2021-06-05 00:40:33,281 INFO L226 Difference]: Without dead ends: 7879 [2021-06-05 00:40:33,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2614.3ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:40:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2021-06-05 00:40:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 4301. [2021-06-05 00:40:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.6701558501977205) internal successors, (11479), 4300 states have internal predecessors, (11479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11479 transitions. [2021-06-05 00:40:33,351 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11479 transitions. Word has length 94 [2021-06-05 00:40:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:33,351 INFO L482 AbstractCegarLoop]: Abstraction has 4301 states and 11479 transitions. [2021-06-05 00:40:33,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11479 transitions. [2021-06-05 00:40:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:33,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:33,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:33,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 00:40:33,357 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:33,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:33,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1098209919, now seen corresponding path program 83 times [2021-06-05 00:40:33,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:33,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269801331] [2021-06-05 00:40:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:33,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:33,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269801331] [2021-06-05 00:40:33,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269801331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:33,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:33,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:33,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355331673] [2021-06-05 00:40:33,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:33,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:33,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:33,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:33,868 INFO L87 Difference]: Start difference. First operand 4301 states and 11479 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:35,084 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:35,267 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:40:35,463 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:40:35,642 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:40:35,870 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:36,502 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 00:40:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:36,841 INFO L93 Difference]: Finished difference Result 7677 states and 19241 transitions. [2021-06-05 00:40:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:40:36,841 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:36,847 INFO L225 Difference]: With dead ends: 7677 [2021-06-05 00:40:36,847 INFO L226 Difference]: Without dead ends: 7677 [2021-06-05 00:40:36,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2638.7ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:40:36,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7677 states. [2021-06-05 00:40:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7677 to 4295. [2021-06-05 00:40:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4293 states have (on average 2.6703936641043557) internal successors, (11464), 4294 states have internal predecessors, (11464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 11464 transitions. [2021-06-05 00:40:36,908 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 11464 transitions. Word has length 94 [2021-06-05 00:40:36,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:36,908 INFO L482 AbstractCegarLoop]: Abstraction has 4295 states and 11464 transitions. [2021-06-05 00:40:36,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 11464 transitions. [2021-06-05 00:40:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:36,912 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:36,912 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:36,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 00:40:36,912 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1763311735, now seen corresponding path program 84 times [2021-06-05 00:40:36,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:36,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998282767] [2021-06-05 00:40:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:37,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:37,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998282767] [2021-06-05 00:40:37,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998282767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:37,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:37,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:37,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099802061] [2021-06-05 00:40:37,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:37,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:37,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:37,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:37,402 INFO L87 Difference]: Start difference. First operand 4295 states and 11464 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:38,427 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:38,596 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:38,778 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:40:39,004 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:40:39,222 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:40:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:40,142 INFO L93 Difference]: Finished difference Result 7951 states and 19804 transitions. [2021-06-05 00:40:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:40:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:40,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:40,148 INFO L225 Difference]: With dead ends: 7951 [2021-06-05 00:40:40,148 INFO L226 Difference]: Without dead ends: 7951 [2021-06-05 00:40:40,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2472.7ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:40:40,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2021-06-05 00:40:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 4301. [2021-06-05 00:40:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.6701558501977205) internal successors, (11479), 4300 states have internal predecessors, (11479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11479 transitions. [2021-06-05 00:40:40,215 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11479 transitions. Word has length 94 [2021-06-05 00:40:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:40,215 INFO L482 AbstractCegarLoop]: Abstraction has 4301 states and 11479 transitions. [2021-06-05 00:40:40,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11479 transitions. [2021-06-05 00:40:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:40,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:40,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:40,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 00:40:40,219 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:40,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:40,219 INFO L82 PathProgramCache]: Analyzing trace with hash -850641815, now seen corresponding path program 85 times [2021-06-05 00:40:40,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:40,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434030369] [2021-06-05 00:40:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:40,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:40,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434030369] [2021-06-05 00:40:40,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434030369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:40,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:40,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:40,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881441070] [2021-06-05 00:40:40,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:40,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:40,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:40,712 INFO L87 Difference]: Start difference. First operand 4301 states and 11479 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,773 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:41,951 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:42,131 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:42,328 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:42,495 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:42,700 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:43,663 INFO L93 Difference]: Finished difference Result 8225 states and 20331 transitions. [2021-06-05 00:40:43,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:40:43,663 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:43,671 INFO L225 Difference]: With dead ends: 8225 [2021-06-05 00:40:43,671 INFO L226 Difference]: Without dead ends: 8225 [2021-06-05 00:40:43,671 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2636.3ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:40:43,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2021-06-05 00:40:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 4299. [2021-06-05 00:40:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.670235047707703) internal successors, (11474), 4298 states have internal predecessors, (11474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11474 transitions. [2021-06-05 00:40:43,758 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11474 transitions. Word has length 94 [2021-06-05 00:40:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:43,758 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11474 transitions. [2021-06-05 00:40:43,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11474 transitions. [2021-06-05 00:40:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:43,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:43,762 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:43,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 00:40:43,762 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:43,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash 239651507, now seen corresponding path program 86 times [2021-06-05 00:40:43,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:43,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606219916] [2021-06-05 00:40:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:44,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:44,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606219916] [2021-06-05 00:40:44,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606219916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:44,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:44,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:44,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229419616] [2021-06-05 00:40:44,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:44,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:44,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:44,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:44,248 INFO L87 Difference]: Start difference. First operand 4299 states and 11474 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:45,191 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-06-05 00:40:45,339 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:45,501 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:45,675 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:45,855 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:46,055 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:46,237 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:46,499 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:47,155 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 00:40:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:47,498 INFO L93 Difference]: Finished difference Result 7747 states and 19395 transitions. [2021-06-05 00:40:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:40:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:47,504 INFO L225 Difference]: With dead ends: 7747 [2021-06-05 00:40:47,504 INFO L226 Difference]: Without dead ends: 7747 [2021-06-05 00:40:47,505 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2923.9ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:40:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7747 states. [2021-06-05 00:40:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7747 to 4287. [2021-06-05 00:40:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6707117852975495) internal successors, (11444), 4286 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11444 transitions. [2021-06-05 00:40:47,569 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11444 transitions. Word has length 94 [2021-06-05 00:40:47,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:47,569 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11444 transitions. [2021-06-05 00:40:47,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:47,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11444 transitions. [2021-06-05 00:40:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:47,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:47,573 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:47,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 00:40:47,573 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:47,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1779482551, now seen corresponding path program 87 times [2021-06-05 00:40:47,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:47,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562097577] [2021-06-05 00:40:47,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:48,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:48,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562097577] [2021-06-05 00:40:48,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562097577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:48,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:48,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:48,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127924353] [2021-06-05 00:40:48,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:48,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:48,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:48,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:48,063 INFO L87 Difference]: Start difference. First operand 4287 states and 11444 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,090 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:49,259 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:49,428 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:40:49,627 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:40:49,831 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:40:50,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:50,718 INFO L93 Difference]: Finished difference Result 7491 states and 18810 transitions. [2021-06-05 00:40:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:40:50,719 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:50,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:50,725 INFO L225 Difference]: With dead ends: 7491 [2021-06-05 00:40:50,725 INFO L226 Difference]: Without dead ends: 7491 [2021-06-05 00:40:50,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2399.1ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:40:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2021-06-05 00:40:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 4295. [2021-06-05 00:40:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4293 states have (on average 2.6703936641043557) internal successors, (11464), 4294 states have internal predecessors, (11464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 11464 transitions. [2021-06-05 00:40:50,789 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 11464 transitions. Word has length 94 [2021-06-05 00:40:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:50,789 INFO L482 AbstractCegarLoop]: Abstraction has 4295 states and 11464 transitions. [2021-06-05 00:40:50,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 11464 transitions. [2021-06-05 00:40:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:50,793 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:50,793 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:50,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 00:40:50,793 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:50,793 INFO L82 PathProgramCache]: Analyzing trace with hash -834470999, now seen corresponding path program 88 times [2021-06-05 00:40:50,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:50,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713436647] [2021-06-05 00:40:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:51,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:51,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713436647] [2021-06-05 00:40:51,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713436647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:51,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:51,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:51,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151671979] [2021-06-05 00:40:51,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:51,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:51,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:51,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:51,267 INFO L87 Difference]: Start difference. First operand 4295 states and 11464 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:52,309 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:52,482 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:40:52,664 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:52,857 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:53,027 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:53,236 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:54,202 INFO L93 Difference]: Finished difference Result 7765 states and 19337 transitions. [2021-06-05 00:40:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:40:54,203 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:54,208 INFO L225 Difference]: With dead ends: 7765 [2021-06-05 00:40:54,208 INFO L226 Difference]: Without dead ends: 7765 [2021-06-05 00:40:54,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2564.5ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:40:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2021-06-05 00:40:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 4293. [2021-06-05 00:40:54,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 4291 states have (on average 2.6704730831973897) internal successors, (11459), 4292 states have internal predecessors, (11459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 11459 transitions. [2021-06-05 00:40:54,267 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 11459 transitions. Word has length 94 [2021-06-05 00:40:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:54,267 INFO L482 AbstractCegarLoop]: Abstraction has 4293 states and 11459 transitions. [2021-06-05 00:40:54,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 11459 transitions. [2021-06-05 00:40:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:54,270 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:54,270 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:54,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 00:40:54,271 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:54,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:54,271 INFO L82 PathProgramCache]: Analyzing trace with hash 255822323, now seen corresponding path program 89 times [2021-06-05 00:40:54,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:54,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822113494] [2021-06-05 00:40:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:54,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:54,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822113494] [2021-06-05 00:40:54,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822113494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:54,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:54,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:54,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109138667] [2021-06-05 00:40:54,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:54,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:54,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:54,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:54,741 INFO L87 Difference]: Start difference. First operand 4293 states and 11459 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,802 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:40:55,965 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:56,142 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:40:56,318 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:40:56,524 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:40:56,695 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:40:56,913 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:40:57,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:57,863 INFO L93 Difference]: Finished difference Result 7831 states and 19481 transitions. [2021-06-05 00:40:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:40:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:40:57,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:57,870 INFO L225 Difference]: With dead ends: 7831 [2021-06-05 00:40:57,870 INFO L226 Difference]: Without dead ends: 7831 [2021-06-05 00:40:57,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2755.6ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:40:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7831 states. [2021-06-05 00:40:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 4289. [2021-06-05 00:40:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4287 states have (on average 2.6706321436902263) internal successors, (11449), 4288 states have internal predecessors, (11449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:57,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 11449 transitions. [2021-06-05 00:40:57,936 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 11449 transitions. Word has length 94 [2021-06-05 00:40:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:57,937 INFO L482 AbstractCegarLoop]: Abstraction has 4289 states and 11449 transitions. [2021-06-05 00:40:57,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 11449 transitions. [2021-06-05 00:40:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:40:57,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:57,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:57,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 00:40:57,940 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:40:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:57,940 INFO L82 PathProgramCache]: Analyzing trace with hash -592317295, now seen corresponding path program 90 times [2021-06-05 00:40:57,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:57,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880568464] [2021-06-05 00:40:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:58,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:58,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880568464] [2021-06-05 00:40:58,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880568464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:58,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:58,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:40:58,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036425210] [2021-06-05 00:40:58,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:40:58,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:58,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:40:58,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:40:58,526 INFO L87 Difference]: Start difference. First operand 4289 states and 11449 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:59,632 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:40:59,797 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:40:59,952 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:41:00,131 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:00,332 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:00,554 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:00,761 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:00,989 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:01,645 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 00:41:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:02,002 INFO L93 Difference]: Finished difference Result 7283 states and 18391 transitions. [2021-06-05 00:41:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:02,008 INFO L225 Difference]: With dead ends: 7283 [2021-06-05 00:41:02,008 INFO L226 Difference]: Without dead ends: 7283 [2021-06-05 00:41:02,008 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3124.5ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:41:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7283 states. [2021-06-05 00:41:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7283 to 4287. [2021-06-05 00:41:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6707117852975495) internal successors, (11444), 4286 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11444 transitions. [2021-06-05 00:41:02,070 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11444 transitions. Word has length 94 [2021-06-05 00:41:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:02,070 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11444 transitions. [2021-06-05 00:41:02,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11444 transitions. [2021-06-05 00:41:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:02,074 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:02,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:02,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 00:41:02,074 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:02,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:02,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1969874521, now seen corresponding path program 91 times [2021-06-05 00:41:02,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:02,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310193247] [2021-06-05 00:41:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:02,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:02,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310193247] [2021-06-05 00:41:02,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310193247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:02,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:02,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:02,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558960945] [2021-06-05 00:41:02,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:02,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:02,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:02,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:02,583 INFO L87 Difference]: Start difference. First operand 4287 states and 11444 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:03,313 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 00:41:03,628 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:03,798 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:41:04,162 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:41:04,347 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:41:04,535 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:41:04,832 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:04,995 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:41:05,166 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:05,342 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:41:05,498 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:41:05,681 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:41:05,937 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:41:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:05,944 INFO L93 Difference]: Finished difference Result 9325 states and 23737 transitions. [2021-06-05 00:41:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:41:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:05,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:05,951 INFO L225 Difference]: With dead ends: 9325 [2021-06-05 00:41:05,951 INFO L226 Difference]: Without dead ends: 9325 [2021-06-05 00:41:05,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3017.4ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:41:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9325 states. [2021-06-05 00:41:06,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9325 to 4371. [2021-06-05 00:41:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4369 states have (on average 2.67704280155642) internal successors, (11696), 4370 states have internal predecessors, (11696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 11696 transitions. [2021-06-05 00:41:06,023 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 11696 transitions. Word has length 94 [2021-06-05 00:41:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:06,023 INFO L482 AbstractCegarLoop]: Abstraction has 4371 states and 11696 transitions. [2021-06-05 00:41:06,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 11696 transitions. [2021-06-05 00:41:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:06,027 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:06,027 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:06,027 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 00:41:06,027 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:06,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:06,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1679769143, now seen corresponding path program 92 times [2021-06-05 00:41:06,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:06,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530948583] [2021-06-05 00:41:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:06,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:06,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530948583] [2021-06-05 00:41:06,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530948583] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:06,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:06,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:06,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349227929] [2021-06-05 00:41:06,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:06,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:06,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:06,527 INFO L87 Difference]: Start difference. First operand 4371 states and 11696 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:07,430 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:41:07,629 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:07,812 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:41:08,024 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:41:08,262 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:41:08,609 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:41:08,800 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:41:09,114 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:41:09,302 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:41:09,498 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:41:09,691 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:41:09,885 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:41:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:09,892 INFO L93 Difference]: Finished difference Result 9999 states and 25533 transitions. [2021-06-05 00:41:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:41:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:09,901 INFO L225 Difference]: With dead ends: 9999 [2021-06-05 00:41:09,901 INFO L226 Difference]: Without dead ends: 9999 [2021-06-05 00:41:09,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2988.8ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:41:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2021-06-05 00:41:09,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 4335. [2021-06-05 00:41:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4333 states have (on average 2.674359566120471) internal successors, (11588), 4334 states have internal predecessors, (11588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:09,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 11588 transitions. [2021-06-05 00:41:09,979 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 11588 transitions. Word has length 94 [2021-06-05 00:41:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:09,979 INFO L482 AbstractCegarLoop]: Abstraction has 4335 states and 11588 transitions. [2021-06-05 00:41:09,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 11588 transitions. [2021-06-05 00:41:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:09,983 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:09,983 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:09,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 00:41:09,983 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:09,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:09,983 INFO L82 PathProgramCache]: Analyzing trace with hash -217447009, now seen corresponding path program 93 times [2021-06-05 00:41:09,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:09,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883777956] [2021-06-05 00:41:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:10,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:10,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883777956] [2021-06-05 00:41:10,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883777956] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:10,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:10,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:10,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734142694] [2021-06-05 00:41:10,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:10,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:10,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:10,425 INFO L87 Difference]: Start difference. First operand 4335 states and 11588 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,418 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:11,749 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:11,907 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:41:12,105 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:41:12,306 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:41:12,598 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:41:12,752 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:41:12,908 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:41:13,096 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:41:13,232 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:13,389 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:13,556 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:41:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:13,566 INFO L93 Difference]: Finished difference Result 9773 states and 24736 transitions. [2021-06-05 00:41:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:41:13,566 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:13,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:13,572 INFO L225 Difference]: With dead ends: 9773 [2021-06-05 00:41:13,572 INFO L226 Difference]: Without dead ends: 9773 [2021-06-05 00:41:13,572 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2805.0ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:41:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2021-06-05 00:41:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 4337. [2021-06-05 00:41:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 4335 states have (on average 2.6742791234140717) internal successors, (11593), 4336 states have internal predecessors, (11593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 11593 transitions. [2021-06-05 00:41:13,640 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 11593 transitions. Word has length 94 [2021-06-05 00:41:13,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:13,641 INFO L482 AbstractCegarLoop]: Abstraction has 4337 states and 11593 transitions. [2021-06-05 00:41:13,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 11593 transitions. [2021-06-05 00:41:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:13,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:13,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:13,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 00:41:13,644 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:13,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:13,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1551088745, now seen corresponding path program 94 times [2021-06-05 00:41:13,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:13,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935118313] [2021-06-05 00:41:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:14,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:14,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935118313] [2021-06-05 00:41:14,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935118313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:14,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:14,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:14,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319253844] [2021-06-05 00:41:14,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:14,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:14,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:14,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:14,101 INFO L87 Difference]: Start difference. First operand 4337 states and 11593 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:15,084 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:15,423 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:15,588 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:15,769 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:15,941 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:16,167 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:16,507 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:41:16,663 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:41:16,818 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:41:16,980 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:41:17,121 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:17,273 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:17,433 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:41:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:17,439 INFO L93 Difference]: Finished difference Result 9755 states and 24698 transitions. [2021-06-05 00:41:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:41:17,439 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:17,447 INFO L225 Difference]: With dead ends: 9755 [2021-06-05 00:41:17,447 INFO L226 Difference]: Without dead ends: 9755 [2021-06-05 00:41:17,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2961.7ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:41:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2021-06-05 00:41:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 4335. [2021-06-05 00:41:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4333 states have (on average 2.674359566120471) internal successors, (11588), 4334 states have internal predecessors, (11588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 11588 transitions. [2021-06-05 00:41:17,520 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 11588 transitions. Word has length 94 [2021-06-05 00:41:17,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:17,521 INFO L482 AbstractCegarLoop]: Abstraction has 4335 states and 11588 transitions. [2021-06-05 00:41:17,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 11588 transitions. [2021-06-05 00:41:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:17,524 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:17,524 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:17,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 00:41:17,524 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:17,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2068691543, now seen corresponding path program 95 times [2021-06-05 00:41:17,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:17,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103499802] [2021-06-05 00:41:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:18,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:18,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:18,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103499802] [2021-06-05 00:41:18,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103499802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:18,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:18,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:18,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233257959] [2021-06-05 00:41:18,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:18,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:18,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:18,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:18,039 INFO L87 Difference]: Start difference. First operand 4335 states and 11588 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:19,061 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:19,251 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:41:19,445 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:41:19,606 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:41:19,813 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:41:20,209 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:41:20,415 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:20,612 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:41:20,963 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:41:21,144 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:41:21,318 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:41:21,521 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:41:21,704 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:41:21,901 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:41:22,079 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:41:22,267 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:41:22,447 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:22,644 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:41:22,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:22,654 INFO L93 Difference]: Finished difference Result 11216 states and 28378 transitions. [2021-06-05 00:41:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:41:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:22,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:22,661 INFO L225 Difference]: With dead ends: 11216 [2021-06-05 00:41:22,661 INFO L226 Difference]: Without dead ends: 11216 [2021-06-05 00:41:22,662 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4133.8ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:22,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2021-06-05 00:41:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 4347. [2021-06-05 00:41:22,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4345 states have (on average 2.675258918296893) internal successors, (11624), 4346 states have internal predecessors, (11624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11624 transitions. [2021-06-05 00:41:22,736 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11624 transitions. Word has length 94 [2021-06-05 00:41:22,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:22,736 INFO L482 AbstractCegarLoop]: Abstraction has 4347 states and 11624 transitions. [2021-06-05 00:41:22,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11624 transitions. [2021-06-05 00:41:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:22,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:22,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:22,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 00:41:22,740 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:22,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1030871645, now seen corresponding path program 96 times [2021-06-05 00:41:22,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:22,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265303048] [2021-06-05 00:41:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:23,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:23,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265303048] [2021-06-05 00:41:23,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265303048] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:23,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:23,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:23,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685434583] [2021-06-05 00:41:23,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:23,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:23,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:23,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:23,217 INFO L87 Difference]: Start difference. First operand 4347 states and 11624 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:24,031 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:41:24,217 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:41:24,399 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:41:24,591 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:41:24,977 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:25,160 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:25,337 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:25,542 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:25,891 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:41:26,066 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:41:26,250 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:41:26,415 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:26,588 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:41:26,767 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:26,774 INFO L93 Difference]: Finished difference Result 10385 states and 26297 transitions. [2021-06-05 00:41:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:41:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:26,782 INFO L225 Difference]: With dead ends: 10385 [2021-06-05 00:41:26,782 INFO L226 Difference]: Without dead ends: 10385 [2021-06-05 00:41:26,782 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3130.3ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:41:26,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10385 states. [2021-06-05 00:41:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10385 to 4323. [2021-06-05 00:41:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4321 states have (on average 2.673455218699375) internal successors, (11552), 4322 states have internal predecessors, (11552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 11552 transitions. [2021-06-05 00:41:26,859 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 11552 transitions. Word has length 94 [2021-06-05 00:41:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:26,859 INFO L482 AbstractCegarLoop]: Abstraction has 4323 states and 11552 transitions. [2021-06-05 00:41:26,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 11552 transitions. [2021-06-05 00:41:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:26,862 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:26,863 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:26,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 00:41:26,863 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1003813227, now seen corresponding path program 97 times [2021-06-05 00:41:26,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:26,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675345280] [2021-06-05 00:41:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:27,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:27,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675345280] [2021-06-05 00:41:27,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675345280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:27,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:27,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:27,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381047059] [2021-06-05 00:41:27,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:27,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:27,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:27,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:27,323 INFO L87 Difference]: Start difference. First operand 4323 states and 11552 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:28,431 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:28,584 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:28,745 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:41:28,939 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:41:29,139 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:41:29,419 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:41:29,573 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:41:29,711 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:41:29,858 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:41:29,981 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:30,124 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:41:30,267 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:41:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:30,276 INFO L93 Difference]: Finished difference Result 9889 states and 25022 transitions. [2021-06-05 00:41:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:41:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:30,282 INFO L225 Difference]: With dead ends: 9889 [2021-06-05 00:41:30,282 INFO L226 Difference]: Without dead ends: 9889 [2021-06-05 00:41:30,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2661.0ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:41:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2021-06-05 00:41:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 4329. [2021-06-05 00:41:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4327 states have (on average 2.6732146984053617) internal successors, (11567), 4328 states have internal predecessors, (11567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 11567 transitions. [2021-06-05 00:41:30,350 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 11567 transitions. Word has length 94 [2021-06-05 00:41:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:30,351 INFO L482 AbstractCegarLoop]: Abstraction has 4329 states and 11567 transitions. [2021-06-05 00:41:30,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 11567 transitions. [2021-06-05 00:41:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:30,354 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:30,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:30,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 00:41:30,354 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:30,355 INFO L82 PathProgramCache]: Analyzing trace with hash 764722527, now seen corresponding path program 98 times [2021-06-05 00:41:30,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:30,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695105507] [2021-06-05 00:41:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:30,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:30,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695105507] [2021-06-05 00:41:30,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695105507] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:30,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:30,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:30,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600330985] [2021-06-05 00:41:30,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:30,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:30,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:30,842 INFO L87 Difference]: Start difference. First operand 4329 states and 11567 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:31,996 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:32,158 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:32,328 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:32,516 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:32,683 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:32,888 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:33,219 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:41:33,375 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:41:33,541 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:41:33,688 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:41:33,812 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:33,957 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:41:34,107 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:41:34,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:34,116 INFO L93 Difference]: Finished difference Result 10163 states and 25549 transitions. [2021-06-05 00:41:34,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:41:34,117 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:34,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:34,125 INFO L225 Difference]: With dead ends: 10163 [2021-06-05 00:41:34,125 INFO L226 Difference]: Without dead ends: 10163 [2021-06-05 00:41:34,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2863.9ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:41:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2021-06-05 00:41:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 4327. [2021-06-05 00:41:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 4325 states have (on average 2.6732947976878614) internal successors, (11562), 4326 states have internal predecessors, (11562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 11562 transitions. [2021-06-05 00:41:34,223 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 11562 transitions. Word has length 94 [2021-06-05 00:41:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:34,223 INFO L482 AbstractCegarLoop]: Abstraction has 4327 states and 11562 transitions. [2021-06-05 00:41:34,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 11562 transitions. [2021-06-05 00:41:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:34,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:34,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:34,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 00:41:34,227 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:34,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:34,227 INFO L82 PathProgramCache]: Analyzing trace with hash 229470357, now seen corresponding path program 99 times [2021-06-05 00:41:34,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:34,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141622818] [2021-06-05 00:41:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:34,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:34,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141622818] [2021-06-05 00:41:34,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141622818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:34,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:34,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:34,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016072306] [2021-06-05 00:41:34,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:34,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:34,692 INFO L87 Difference]: Start difference. First operand 4327 states and 11562 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:35,882 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:36,034 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:41:36,199 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:36,364 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:36,562 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:36,746 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:36,959 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:37,297 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:41:37,437 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:41:37,577 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:41:37,724 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:41:37,852 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:37,991 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:41:38,134 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:41:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:38,140 INFO L93 Difference]: Finished difference Result 9913 states and 25075 transitions. [2021-06-05 00:41:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:41:38,141 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:38,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:38,148 INFO L225 Difference]: With dead ends: 9913 [2021-06-05 00:41:38,148 INFO L226 Difference]: Without dead ends: 9913 [2021-06-05 00:41:38,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2974.8ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:41:38,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2021-06-05 00:41:38,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 4323. [2021-06-05 00:41:38,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4321 states have (on average 2.673455218699375) internal successors, (11552), 4322 states have internal predecessors, (11552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 11552 transitions. [2021-06-05 00:41:38,222 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 11552 transitions. Word has length 94 [2021-06-05 00:41:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:38,222 INFO L482 AbstractCegarLoop]: Abstraction has 4323 states and 11552 transitions. [2021-06-05 00:41:38,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 11552 transitions. [2021-06-05 00:41:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:38,226 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:38,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:38,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 00:41:38,226 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:38,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:38,226 INFO L82 PathProgramCache]: Analyzing trace with hash 2026137971, now seen corresponding path program 100 times [2021-06-05 00:41:38,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:38,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013117899] [2021-06-05 00:41:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:38,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:38,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013117899] [2021-06-05 00:41:38,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013117899] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:38,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:38,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:38,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248545952] [2021-06-05 00:41:38,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:38,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:38,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:38,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:38,712 INFO L87 Difference]: Start difference. First operand 4323 states and 11552 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:39,676 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:39,853 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:41:40,035 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:41:40,240 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:41:40,404 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:41:40,625 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:41:40,985 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:41,194 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:41:41,384 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:41,595 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:41:41,931 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:41:42,114 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:41:42,277 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:41:42,468 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:41:42,634 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:41:42,831 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:41:42,993 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:41:43,181 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:41:43,341 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:43,546 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:41:43,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:43,556 INFO L93 Difference]: Finished difference Result 11567 states and 29290 transitions. [2021-06-05 00:41:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:41:43,556 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:43,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:43,565 INFO L225 Difference]: With dead ends: 11567 [2021-06-05 00:41:43,565 INFO L226 Difference]: Without dead ends: 11567 [2021-06-05 00:41:43,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4329.7ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2021-06-05 00:41:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 4359. [2021-06-05 00:41:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4359 states, 4357 states have (on average 2.6761533165021802) internal successors, (11660), 4358 states have internal predecessors, (11660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 11660 transitions. [2021-06-05 00:41:43,681 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 11660 transitions. Word has length 94 [2021-06-05 00:41:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:43,681 INFO L482 AbstractCegarLoop]: Abstraction has 4359 states and 11660 transitions. [2021-06-05 00:41:43,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 11660 transitions. [2021-06-05 00:41:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:43,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:43,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:43,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 00:41:43,687 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:43,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1231009427, now seen corresponding path program 101 times [2021-06-05 00:41:43,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:43,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247240394] [2021-06-05 00:41:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:44,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:44,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247240394] [2021-06-05 00:41:44,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247240394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:44,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:44,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:44,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257457818] [2021-06-05 00:41:44,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:44,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:44,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:44,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:44,215 INFO L87 Difference]: Start difference. First operand 4359 states and 11660 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:45,322 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:45,505 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:41:45,688 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:41:45,898 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:41:46,341 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:46,509 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:46,701 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:46,873 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:47,092 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:47,504 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:41:47,673 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:41:47,833 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:41:48,008 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:41:48,175 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:41:48,362 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:41:48,549 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:48,720 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:41:48,894 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:41:49,063 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:49,233 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:49,243 INFO L93 Difference]: Finished difference Result 11836 states and 29750 transitions. [2021-06-05 00:41:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:41:49,243 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:49,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:49,251 INFO L225 Difference]: With dead ends: 11836 [2021-06-05 00:41:49,252 INFO L226 Difference]: Without dead ends: 11836 [2021-06-05 00:41:49,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4354.7ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11836 states. [2021-06-05 00:41:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11836 to 4347. [2021-06-05 00:41:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4345 states have (on average 2.675258918296893) internal successors, (11624), 4346 states have internal predecessors, (11624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11624 transitions. [2021-06-05 00:41:49,326 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11624 transitions. Word has length 94 [2021-06-05 00:41:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:49,326 INFO L482 AbstractCegarLoop]: Abstraction has 4347 states and 11624 transitions. [2021-06-05 00:41:49,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11624 transitions. [2021-06-05 00:41:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:49,330 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:49,330 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:49,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 00:41:49,330 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:49,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:49,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1098928567, now seen corresponding path program 102 times [2021-06-05 00:41:49,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:49,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190594195] [2021-06-05 00:41:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:49,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:49,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190594195] [2021-06-05 00:41:49,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190594195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:49,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:49,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:49,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292409560] [2021-06-05 00:41:49,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:49,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:49,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:49,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:49,847 INFO L87 Difference]: Start difference. First operand 4347 states and 11624 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:50,807 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:50,994 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:41:51,361 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:41:51,518 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:51,687 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:51,876 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:52,047 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:52,257 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:52,597 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:41:52,758 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:41:52,925 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:41:53,072 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:41:53,230 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:41:53,408 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:41:53,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:53,414 INFO L93 Difference]: Finished difference Result 10663 states and 27003 transitions. [2021-06-05 00:41:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:41:53,414 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:53,422 INFO L225 Difference]: With dead ends: 10663 [2021-06-05 00:41:53,422 INFO L226 Difference]: Without dead ends: 10663 [2021-06-05 00:41:53,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3200.9ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:41:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2021-06-05 00:41:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 4299. [2021-06-05 00:41:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.6716313707237607) internal successors, (11480), 4298 states have internal predecessors, (11480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11480 transitions. [2021-06-05 00:41:53,491 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11480 transitions. Word has length 94 [2021-06-05 00:41:53,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:53,491 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11480 transitions. [2021-06-05 00:41:53,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11480 transitions. [2021-06-05 00:41:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:53,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:53,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:53,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 00:41:53,495 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:53,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1740223437, now seen corresponding path program 103 times [2021-06-05 00:41:53,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:53,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397806398] [2021-06-05 00:41:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:53,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:53,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397806398] [2021-06-05 00:41:53,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397806398] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:53,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:53,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:53,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401453947] [2021-06-05 00:41:53,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:53,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:53,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:53,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:53,940 INFO L87 Difference]: Start difference. First operand 4299 states and 11480 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:55,021 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:55,182 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:55,347 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:41:55,549 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:41:55,765 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:41:56,300 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:41:56,434 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:41:56,669 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:41:56,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:56,810 INFO L93 Difference]: Finished difference Result 8871 states and 22493 transitions. [2021-06-05 00:41:56,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:41:56,810 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:41:56,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:56,816 INFO L225 Difference]: With dead ends: 8871 [2021-06-05 00:41:56,816 INFO L226 Difference]: Without dead ends: 8871 [2021-06-05 00:41:56,817 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2520.1ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:41:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8871 states. [2021-06-05 00:41:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8871 to 4307. [2021-06-05 00:41:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.671312427409988) internal successors, (11500), 4306 states have internal predecessors, (11500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11500 transitions. [2021-06-05 00:41:56,883 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11500 transitions. Word has length 94 [2021-06-05 00:41:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:56,883 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11500 transitions. [2021-06-05 00:41:56,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11500 transitions. [2021-06-05 00:41:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:41:56,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:56,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:56,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 00:41:56,887 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:41:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:56,887 INFO L82 PathProgramCache]: Analyzing trace with hash 28312317, now seen corresponding path program 104 times [2021-06-05 00:41:56,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:56,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920943704] [2021-06-05 00:41:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:57,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:57,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920943704] [2021-06-05 00:41:57,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920943704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:57,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:57,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:41:57,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316003383] [2021-06-05 00:41:57,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:41:57,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:57,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:41:57,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:41:57,343 INFO L87 Difference]: Start difference. First operand 4307 states and 11500 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:58,436 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:41:58,596 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:41:58,767 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:41:58,956 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:41:59,124 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:41:59,326 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:41:59,902 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:42:00,035 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:42:00,270 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:42:00,416 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:42:00,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:00,425 INFO L93 Difference]: Finished difference Result 9145 states and 23020 transitions. [2021-06-05 00:42:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:42:00,425 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:00,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:00,431 INFO L225 Difference]: With dead ends: 9145 [2021-06-05 00:42:00,431 INFO L226 Difference]: Without dead ends: 9145 [2021-06-05 00:42:00,432 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2692.3ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:42:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9145 states. [2021-06-05 00:42:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9145 to 4305. [2021-06-05 00:42:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4303 states have (on average 2.6713920520567047) internal successors, (11495), 4304 states have internal predecessors, (11495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11495 transitions. [2021-06-05 00:42:00,495 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11495 transitions. Word has length 94 [2021-06-05 00:42:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:00,496 INFO L482 AbstractCegarLoop]: Abstraction has 4305 states and 11495 transitions. [2021-06-05 00:42:00,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11495 transitions. [2021-06-05 00:42:00,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:00,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:00,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:00,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 00:42:00,499 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:00,499 INFO L82 PathProgramCache]: Analyzing trace with hash -506939853, now seen corresponding path program 105 times [2021-06-05 00:42:00,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:00,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288752815] [2021-06-05 00:42:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:00,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:00,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288752815] [2021-06-05 00:42:00,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288752815] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:00,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:00,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:00,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451660691] [2021-06-05 00:42:00,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:00,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:00,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:00,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:00,967 INFO L87 Difference]: Start difference. First operand 4305 states and 11495 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:02,064 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:02,236 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:02,401 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:02,570 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:02,789 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:02,958 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:03,170 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:03,507 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:42:03,767 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:42:03,901 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:42:04,137 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:42:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:04,280 INFO L93 Difference]: Finished difference Result 9211 states and 23164 transitions. [2021-06-05 00:42:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:42:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:04,287 INFO L225 Difference]: With dead ends: 9211 [2021-06-05 00:42:04,288 INFO L226 Difference]: Without dead ends: 9211 [2021-06-05 00:42:04,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2892.8ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:42:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9211 states. [2021-06-05 00:42:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9211 to 4301. [2021-06-05 00:42:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.671551523610142) internal successors, (11485), 4300 states have internal predecessors, (11485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11485 transitions. [2021-06-05 00:42:04,362 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11485 transitions. Word has length 94 [2021-06-05 00:42:04,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:04,362 INFO L482 AbstractCegarLoop]: Abstraction has 4301 states and 11485 transitions. [2021-06-05 00:42:04,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11485 transitions. [2021-06-05 00:42:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:04,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:04,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:04,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 00:42:04,366 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:04,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1696554189, now seen corresponding path program 106 times [2021-06-05 00:42:04,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:04,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647807761] [2021-06-05 00:42:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:05,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:05,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647807761] [2021-06-05 00:42:05,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647807761] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:05,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:05,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:05,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521092173] [2021-06-05 00:42:05,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:05,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:05,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:05,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:05,004 INFO L87 Difference]: Start difference. First operand 4301 states and 11485 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:05,601 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-06-05 00:42:06,177 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:42:06,323 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:06,463 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:06,626 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:06,802 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:07,024 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:07,201 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:07,409 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:07,741 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:42:07,895 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 00:42:08,030 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:42:08,167 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:42:08,425 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:42:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:08,564 INFO L93 Difference]: Finished difference Result 8913 states and 22584 transitions. [2021-06-05 00:42:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:08,565 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:08,572 INFO L225 Difference]: With dead ends: 8913 [2021-06-05 00:42:08,572 INFO L226 Difference]: Without dead ends: 8913 [2021-06-05 00:42:08,572 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3273.8ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:42:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2021-06-05 00:42:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 4299. [2021-06-05 00:42:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.6716313707237607) internal successors, (11480), 4298 states have internal predecessors, (11480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11480 transitions. [2021-06-05 00:42:08,634 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11480 transitions. Word has length 94 [2021-06-05 00:42:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:08,634 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11480 transitions. [2021-06-05 00:42:08,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11480 transitions. [2021-06-05 00:42:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:08,638 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:08,638 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:08,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 00:42:08,638 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1287215983, now seen corresponding path program 107 times [2021-06-05 00:42:08,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:08,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791655151] [2021-06-05 00:42:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:09,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:09,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791655151] [2021-06-05 00:42:09,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791655151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:09,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:09,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:09,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593754697] [2021-06-05 00:42:09,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:09,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:09,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:09,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:09,139 INFO L87 Difference]: Start difference. First operand 4299 states and 11480 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:09,946 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:10,115 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:10,249 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:42:10,424 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:42:10,607 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:42:10,807 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:42:10,972 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:42:11,181 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:42:11,504 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:11,673 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:11,898 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:42:12,069 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:12,280 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:42:12,630 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:42:12,815 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:42:12,957 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:42:13,148 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:42:13,299 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:42:13,532 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:42:13,693 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:42:13,888 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:42:14,037 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:14,222 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:42:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:14,231 INFO L93 Difference]: Finished difference Result 9346 states and 23796 transitions. [2021-06-05 00:42:14,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:42:14,232 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:14,238 INFO L225 Difference]: With dead ends: 9346 [2021-06-05 00:42:14,238 INFO L226 Difference]: Without dead ends: 9346 [2021-06-05 00:42:14,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4568.7ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:42:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2021-06-05 00:42:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 4347. [2021-06-05 00:42:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4345 states have (on average 2.675258918296893) internal successors, (11624), 4346 states have internal predecessors, (11624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11624 transitions. [2021-06-05 00:42:14,305 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11624 transitions. Word has length 94 [2021-06-05 00:42:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:14,306 INFO L482 AbstractCegarLoop]: Abstraction has 4347 states and 11624 transitions. [2021-06-05 00:42:14,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11624 transitions. [2021-06-05 00:42:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:14,309 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:14,309 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:14,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 00:42:14,310 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:14,310 INFO L82 PathProgramCache]: Analyzing trace with hash -249396085, now seen corresponding path program 108 times [2021-06-05 00:42:14,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:14,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704480757] [2021-06-05 00:42:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:14,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:14,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704480757] [2021-06-05 00:42:14,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704480757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:14,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:14,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:14,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316105931] [2021-06-05 00:42:14,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:14,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:14,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:14,822 INFO L87 Difference]: Start difference. First operand 4347 states and 11624 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:15,736 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:15,910 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:16,073 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:42:16,259 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:42:16,446 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:42:16,650 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:42:17,030 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:17,199 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:17,400 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:17,600 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:17,773 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:17,992 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:18,379 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:42:18,552 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:42:18,703 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:42:18,880 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:42:19,033 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:42:19,217 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:42:19,382 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:19,524 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:42:19,699 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:42:19,864 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:20,037 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:20,046 INFO L93 Difference]: Finished difference Result 9615 states and 24256 transitions. [2021-06-05 00:42:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:42:20,047 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:20,053 INFO L225 Difference]: With dead ends: 9615 [2021-06-05 00:42:20,053 INFO L226 Difference]: Without dead ends: 9615 [2021-06-05 00:42:20,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4572.0ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:42:20,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9615 states. [2021-06-05 00:42:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9615 to 4335. [2021-06-05 00:42:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4333 states have (on average 2.674359566120471) internal successors, (11588), 4334 states have internal predecessors, (11588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:20,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 11588 transitions. [2021-06-05 00:42:20,118 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 11588 transitions. Word has length 94 [2021-06-05 00:42:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:20,118 INFO L482 AbstractCegarLoop]: Abstraction has 4335 states and 11588 transitions. [2021-06-05 00:42:20,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 11588 transitions. [2021-06-05 00:42:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:20,121 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:20,121 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:20,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 00:42:20,121 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:20,122 INFO L82 PathProgramCache]: Analyzing trace with hash 2080541909, now seen corresponding path program 109 times [2021-06-05 00:42:20,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:20,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330356856] [2021-06-05 00:42:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:20,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:20,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330356856] [2021-06-05 00:42:20,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330356856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:20,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:20,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:20,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049927778] [2021-06-05 00:42:20,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:20,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:20,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:20,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:20,623 INFO L87 Difference]: Start difference. First operand 4335 states and 11588 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:21,437 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:21,591 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:21,724 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:42:21,896 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:42:22,341 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:22,492 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:22,669 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:22,857 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:23,069 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:23,249 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:23,456 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:23,822 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:42:23,978 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:42:24,125 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:42:24,285 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:42:24,438 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:42:24,626 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:42:24,783 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:24,923 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:42:25,080 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:42:25,236 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:25,394 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:25,403 INFO L93 Difference]: Finished difference Result 9659 states and 24354 transitions. [2021-06-05 00:42:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:42:25,404 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:25,411 INFO L225 Difference]: With dead ends: 9659 [2021-06-05 00:42:25,411 INFO L226 Difference]: Without dead ends: 9659 [2021-06-05 00:42:25,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4229.8ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:42:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9659 states. [2021-06-05 00:42:25,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9659 to 4311. [2021-06-05 00:42:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 4309 states have (on average 2.6725458343003017) internal successors, (11516), 4310 states have internal predecessors, (11516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 11516 transitions. [2021-06-05 00:42:25,477 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 11516 transitions. Word has length 94 [2021-06-05 00:42:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:25,477 INFO L482 AbstractCegarLoop]: Abstraction has 4311 states and 11516 transitions. [2021-06-05 00:42:25,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 11516 transitions. [2021-06-05 00:42:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:25,481 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:25,481 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:25,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 00:42:25,481 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:25,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash -21423241, now seen corresponding path program 110 times [2021-06-05 00:42:25,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:25,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643105777] [2021-06-05 00:42:25,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:25,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:25,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643105777] [2021-06-05 00:42:25,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643105777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:25,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:25,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:25,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896557083] [2021-06-05 00:42:25,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:25,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:25,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:25,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:25,990 INFO L87 Difference]: Start difference. First operand 4311 states and 11516 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:26,803 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:26,970 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:42:27,326 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:42:27,480 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:27,621 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:27,791 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:27,966 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:28,164 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:28,339 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:28,559 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:28,885 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:42:29,032 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:42:29,186 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:42:29,322 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:42:29,478 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:42:29,630 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:42:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:29,636 INFO L93 Difference]: Finished difference Result 8263 states and 21022 transitions. [2021-06-05 00:42:29,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:29,636 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:29,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:29,641 INFO L225 Difference]: With dead ends: 8263 [2021-06-05 00:42:29,642 INFO L226 Difference]: Without dead ends: 8263 [2021-06-05 00:42:29,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3252.8ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:42:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2021-06-05 00:42:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 4287. [2021-06-05 00:42:29,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 2.6707117852975495) internal successors, (11444), 4286 states have internal predecessors, (11444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 11444 transitions. [2021-06-05 00:42:29,701 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 11444 transitions. Word has length 94 [2021-06-05 00:42:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:29,701 INFO L482 AbstractCegarLoop]: Abstraction has 4287 states and 11444 transitions. [2021-06-05 00:42:29,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 11444 transitions. [2021-06-05 00:42:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:29,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:29,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:29,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 00:42:29,704 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:29,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:29,705 INFO L82 PathProgramCache]: Analyzing trace with hash -508184993, now seen corresponding path program 111 times [2021-06-05 00:42:29,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:29,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636664881] [2021-06-05 00:42:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:30,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:30,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636664881] [2021-06-05 00:42:30,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636664881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:30,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:30,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:30,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363534401] [2021-06-05 00:42:30,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:30,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:30,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:30,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:30,168 INFO L87 Difference]: Start difference. First operand 4287 states and 11444 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,337 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:42:31,532 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:42:31,747 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:42:31,951 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:42:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:32,768 INFO L93 Difference]: Finished difference Result 6871 states and 17558 transitions. [2021-06-05 00:42:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:42:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:32,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:32,774 INFO L225 Difference]: With dead ends: 6871 [2021-06-05 00:42:32,774 INFO L226 Difference]: Without dead ends: 6871 [2021-06-05 00:42:32,774 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2304.5ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:42:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2021-06-05 00:42:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 4307. [2021-06-05 00:42:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.669918699186992) internal successors, (11494), 4306 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11494 transitions. [2021-06-05 00:42:32,830 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11494 transitions. Word has length 94 [2021-06-05 00:42:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:32,830 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11494 transitions. [2021-06-05 00:42:32,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11494 transitions. [2021-06-05 00:42:32,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:32,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:32,834 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:32,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 00:42:32,834 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:32,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:32,834 INFO L82 PathProgramCache]: Analyzing trace with hash -567853577, now seen corresponding path program 112 times [2021-06-05 00:42:32,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:32,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101166097] [2021-06-05 00:42:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:33,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:33,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101166097] [2021-06-05 00:42:33,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101166097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:33,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:33,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:33,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383367493] [2021-06-05 00:42:33,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:33,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:33,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:33,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:33,274 INFO L87 Difference]: Start difference. First operand 4307 states and 11494 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:34,477 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:34,656 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:42:34,864 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:42:35,072 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:42:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:35,944 INFO L93 Difference]: Finished difference Result 7349 states and 18494 transitions. [2021-06-05 00:42:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:42:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:35,951 INFO L225 Difference]: With dead ends: 7349 [2021-06-05 00:42:35,951 INFO L226 Difference]: Without dead ends: 7349 [2021-06-05 00:42:35,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2314.4ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:42:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2021-06-05 00:42:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 4309. [2021-06-05 00:42:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4307 states have (on average 2.669839795681449) internal successors, (11499), 4308 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 11499 transitions. [2021-06-05 00:42:36,015 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 11499 transitions. Word has length 94 [2021-06-05 00:42:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:36,015 INFO L482 AbstractCegarLoop]: Abstraction has 4309 states and 11499 transitions. [2021-06-05 00:42:36,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 11499 transitions. [2021-06-05 00:42:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:36,018 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:36,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:36,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 00:42:36,019 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1113160169, now seen corresponding path program 113 times [2021-06-05 00:42:36,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:36,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243457560] [2021-06-05 00:42:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:36,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:36,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243457560] [2021-06-05 00:42:36,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243457560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:36,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:36,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:36,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86922379] [2021-06-05 00:42:36,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:36,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:36,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:36,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:36,494 INFO L87 Difference]: Start difference. First operand 4309 states and 11499 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,652 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:37,826 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:42:38,017 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:42:38,186 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:42:38,385 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:39,258 INFO L93 Difference]: Finished difference Result 7147 states and 18090 transitions. [2021-06-05 00:42:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:42:39,258 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:39,263 INFO L225 Difference]: With dead ends: 7147 [2021-06-05 00:42:39,263 INFO L226 Difference]: Without dead ends: 7147 [2021-06-05 00:42:39,263 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2494.1ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:42:39,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7147 states. [2021-06-05 00:42:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7147 to 4303. [2021-06-05 00:42:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 4301 states have (on average 2.670076726342711) internal successors, (11484), 4302 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 11484 transitions. [2021-06-05 00:42:39,318 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 11484 transitions. Word has length 94 [2021-06-05 00:42:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:39,318 INFO L482 AbstractCegarLoop]: Abstraction has 4303 states and 11484 transitions. [2021-06-05 00:42:39,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 11484 transitions. [2021-06-05 00:42:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:39,321 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:39,321 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:39,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 00:42:39,322 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash -320285473, now seen corresponding path program 114 times [2021-06-05 00:42:39,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:39,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049158773] [2021-06-05 00:42:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:39,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:39,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049158773] [2021-06-05 00:42:39,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049158773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:39,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:39,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:39,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018226117] [2021-06-05 00:42:39,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:39,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:39,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:39,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:39,768 INFO L87 Difference]: Start difference. First operand 4303 states and 11484 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:40,784 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:40,964 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:41,136 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:42:41,352 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:42:41,559 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:42:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:42,418 INFO L93 Difference]: Finished difference Result 7421 states and 18653 transitions. [2021-06-05 00:42:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:42:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:42,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:42,424 INFO L225 Difference]: With dead ends: 7421 [2021-06-05 00:42:42,424 INFO L226 Difference]: Without dead ends: 7421 [2021-06-05 00:42:42,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2289.9ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:42:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7421 states. [2021-06-05 00:42:42,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7421 to 4309. [2021-06-05 00:42:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4307 states have (on average 2.669839795681449) internal successors, (11499), 4308 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 11499 transitions. [2021-06-05 00:42:42,486 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 11499 transitions. Word has length 94 [2021-06-05 00:42:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:42,486 INFO L482 AbstractCegarLoop]: Abstraction has 4309 states and 11499 transitions. [2021-06-05 00:42:42,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 11499 transitions. [2021-06-05 00:42:42,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:42,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:42,490 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:42,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 00:42:42,490 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:42,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1360728273, now seen corresponding path program 115 times [2021-06-05 00:42:42,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:42,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703446669] [2021-06-05 00:42:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:42,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:42,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703446669] [2021-06-05 00:42:42,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703446669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:42,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:42,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:42,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845561001] [2021-06-05 00:42:42,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:42,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:42,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:42,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:42,948 INFO L87 Difference]: Start difference. First operand 4309 states and 11499 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:44,008 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:44,192 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:44,420 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:44,623 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:44,792 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:45,012 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:45,931 INFO L93 Difference]: Finished difference Result 7695 states and 19180 transitions. [2021-06-05 00:42:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:42:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:45,938 INFO L225 Difference]: With dead ends: 7695 [2021-06-05 00:42:45,938 INFO L226 Difference]: Without dead ends: 7695 [2021-06-05 00:42:45,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2503.7ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:42:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7695 states. [2021-06-05 00:42:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7695 to 4307. [2021-06-05 00:42:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.669918699186992) internal successors, (11494), 4306 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11494 transitions. [2021-06-05 00:42:46,016 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11494 transitions. Word has length 94 [2021-06-05 00:42:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:46,016 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11494 transitions. [2021-06-05 00:42:46,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11494 transitions. [2021-06-05 00:42:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:46,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:46,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:46,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 00:42:46,020 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:46,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1843945701, now seen corresponding path program 116 times [2021-06-05 00:42:46,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:46,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442299415] [2021-06-05 00:42:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:46,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:46,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442299415] [2021-06-05 00:42:46,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442299415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:46,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:46,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:46,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797087468] [2021-06-05 00:42:46,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:46,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:46,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:46,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:46,494 INFO L87 Difference]: Start difference. First operand 4307 states and 11494 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,525 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:47,692 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:47,869 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:48,044 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:48,245 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:48,444 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:48,659 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:49,516 INFO L93 Difference]: Finished difference Result 7217 states and 18244 transitions. [2021-06-05 00:42:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:42:49,517 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:49,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:49,522 INFO L225 Difference]: With dead ends: 7217 [2021-06-05 00:42:49,522 INFO L226 Difference]: Without dead ends: 7217 [2021-06-05 00:42:49,522 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2662.4ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:42:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7217 states. [2021-06-05 00:42:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7217 to 4295. [2021-06-05 00:42:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4293 states have (on average 2.6703936641043557) internal successors, (11464), 4294 states have internal predecessors, (11464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 11464 transitions. [2021-06-05 00:42:49,580 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 11464 transitions. Word has length 94 [2021-06-05 00:42:49,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:49,580 INFO L482 AbstractCegarLoop]: Abstraction has 4295 states and 11464 transitions. [2021-06-05 00:42:49,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 11464 transitions. [2021-06-05 00:42:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:49,584 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:49,584 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:49,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 00:42:49,584 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -304114657, now seen corresponding path program 117 times [2021-06-05 00:42:49,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:49,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207611829] [2021-06-05 00:42:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:50,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:50,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207611829] [2021-06-05 00:42:50,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207611829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:50,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:50,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:50,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355147503] [2021-06-05 00:42:50,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:50,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:50,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:50,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:50,023 INFO L87 Difference]: Start difference. First operand 4295 states and 11464 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:51,074 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:51,258 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:51,434 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:42:51,644 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:42:51,858 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:42:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:52,735 INFO L93 Difference]: Finished difference Result 7493 states and 18812 transitions. [2021-06-05 00:42:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:42:52,735 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:52,741 INFO L225 Difference]: With dead ends: 7493 [2021-06-05 00:42:52,741 INFO L226 Difference]: Without dead ends: 7493 [2021-06-05 00:42:52,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2294.0ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:42:52,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2021-06-05 00:42:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 4303. [2021-06-05 00:42:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 4301 states have (on average 2.670076726342711) internal successors, (11484), 4302 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 11484 transitions. [2021-06-05 00:42:52,806 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 11484 transitions. Word has length 94 [2021-06-05 00:42:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:52,806 INFO L482 AbstractCegarLoop]: Abstraction has 4303 states and 11484 transitions. [2021-06-05 00:42:52,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 11484 transitions. [2021-06-05 00:42:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:52,810 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:52,810 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:52,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 00:42:52,810 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:52,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1376899089, now seen corresponding path program 118 times [2021-06-05 00:42:52,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:52,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520202464] [2021-06-05 00:42:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:53,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:53,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520202464] [2021-06-05 00:42:53,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520202464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:53,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:53,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:53,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136231470] [2021-06-05 00:42:53,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:53,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:53,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:53,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:53,283 INFO L87 Difference]: Start difference. First operand 4303 states and 11484 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:54,299 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:54,475 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:42:54,653 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:54,846 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:55,014 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:55,221 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:55,860 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-06-05 00:42:56,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:56,149 INFO L93 Difference]: Finished difference Result 7767 states and 19339 transitions. [2021-06-05 00:42:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:42:56,150 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:56,154 INFO L225 Difference]: With dead ends: 7767 [2021-06-05 00:42:56,154 INFO L226 Difference]: Without dead ends: 7767 [2021-06-05 00:42:56,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2544.4ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:42:56,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2021-06-05 00:42:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 4301. [2021-06-05 00:42:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.6701558501977205) internal successors, (11479), 4300 states have internal predecessors, (11479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11479 transitions. [2021-06-05 00:42:56,215 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11479 transitions. Word has length 94 [2021-06-05 00:42:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:56,215 INFO L482 AbstractCegarLoop]: Abstraction has 4301 states and 11479 transitions. [2021-06-05 00:42:56,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11479 transitions. [2021-06-05 00:42:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:56,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:56,219 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:56,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 00:42:56,219 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:56,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1827774885, now seen corresponding path program 119 times [2021-06-05 00:42:56,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:56,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760735896] [2021-06-05 00:42:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:56,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:56,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760735896] [2021-06-05 00:42:56,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760735896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:56,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:56,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:42:56,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696038817] [2021-06-05 00:42:56,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:42:56,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:56,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:42:56,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:42:56,720 INFO L87 Difference]: Start difference. First operand 4301 states and 11479 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:57,800 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:42:57,981 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:42:58,156 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:42:58,332 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:42:58,541 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:42:58,711 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:42:58,924 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:42:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:59,811 INFO L93 Difference]: Finished difference Result 7833 states and 19483 transitions. [2021-06-05 00:42:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:42:59,812 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:42:59,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:59,818 INFO L225 Difference]: With dead ends: 7833 [2021-06-05 00:42:59,818 INFO L226 Difference]: Without dead ends: 7833 [2021-06-05 00:42:59,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2718.2ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:42:59,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2021-06-05 00:42:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 4297. [2021-06-05 00:42:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4295 states have (on average 2.670314318975553) internal successors, (11469), 4296 states have internal predecessors, (11469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:59,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 11469 transitions. [2021-06-05 00:42:59,879 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 11469 transitions. Word has length 94 [2021-06-05 00:42:59,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:59,880 INFO L482 AbstractCegarLoop]: Abstraction has 4297 states and 11469 transitions. [2021-06-05 00:42:59,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 11469 transitions. [2021-06-05 00:42:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:42:59,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:59,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:59,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 00:42:59,883 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:42:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:59,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1619052793, now seen corresponding path program 120 times [2021-06-05 00:42:59,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:59,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624279489] [2021-06-05 00:42:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:00,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:00,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624279489] [2021-06-05 00:43:00,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624279489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:00,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:00,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:00,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065072561] [2021-06-05 00:43:00,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:00,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:00,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:00,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:00,378 INFO L87 Difference]: Start difference. First operand 4297 states and 11469 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:01,378 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:43:01,540 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:43:01,679 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:01,848 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:02,031 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:02,239 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:02,411 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:02,621 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:03,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:03,491 INFO L93 Difference]: Finished difference Result 7285 states and 18393 transitions. [2021-06-05 00:43:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:43:03,492 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:03,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:03,497 INFO L225 Difference]: With dead ends: 7285 [2021-06-05 00:43:03,497 INFO L226 Difference]: Without dead ends: 7285 [2021-06-05 00:43:03,497 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2803.7ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:43:03,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2021-06-05 00:43:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 4291. [2021-06-05 00:43:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4291 states, 4289 states have (on average 2.6705525763581255) internal successors, (11454), 4290 states have internal predecessors, (11454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 11454 transitions. [2021-06-05 00:43:03,554 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 11454 transitions. Word has length 94 [2021-06-05 00:43:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:03,554 INFO L482 AbstractCegarLoop]: Abstraction has 4291 states and 11454 transitions. [2021-06-05 00:43:03,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 11454 transitions. [2021-06-05 00:43:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:03,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:03,557 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:03,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 00:43:03,558 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:03,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:03,558 INFO L82 PathProgramCache]: Analyzing trace with hash -619004041, now seen corresponding path program 121 times [2021-06-05 00:43:03,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:03,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380042803] [2021-06-05 00:43:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:04,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:04,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380042803] [2021-06-05 00:43:04,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380042803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:04,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:04,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:04,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657496083] [2021-06-05 00:43:04,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:04,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:04,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:04,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:04,004 INFO L87 Difference]: Start difference. First operand 4291 states and 11454 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:04,984 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:05,168 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:05,335 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:43:05,535 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:43:05,740 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:43:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:06,564 INFO L93 Difference]: Finished difference Result 6963 states and 17655 transitions. [2021-06-05 00:43:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:43:06,565 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:06,570 INFO L225 Difference]: With dead ends: 6963 [2021-06-05 00:43:06,570 INFO L226 Difference]: Without dead ends: 6963 [2021-06-05 00:43:06,570 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2296.1ms TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:43:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2021-06-05 00:43:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 4301. [2021-06-05 00:43:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.6701558501977205) internal successors, (11479), 4300 states have internal predecessors, (11479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11479 transitions. [2021-06-05 00:43:06,629 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11479 transitions. Word has length 94 [2021-06-05 00:43:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:06,629 INFO L482 AbstractCegarLoop]: Abstraction has 4301 states and 11479 transitions. [2021-06-05 00:43:06,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11479 transitions. [2021-06-05 00:43:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:06,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:06,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:06,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 00:43:06,633 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1062009705, now seen corresponding path program 122 times [2021-06-05 00:43:06,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:06,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092229390] [2021-06-05 00:43:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:07,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:07,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092229390] [2021-06-05 00:43:07,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092229390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:07,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:07,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:07,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347876913] [2021-06-05 00:43:07,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:07,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:07,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:07,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:07,094 INFO L87 Difference]: Start difference. First operand 4301 states and 11479 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:08,145 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:08,326 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:08,507 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:08,701 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:08,868 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:09,082 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:09,970 INFO L93 Difference]: Finished difference Result 7237 states and 18182 transitions. [2021-06-05 00:43:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:43:09,971 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:09,975 INFO L225 Difference]: With dead ends: 7237 [2021-06-05 00:43:09,975 INFO L226 Difference]: Without dead ends: 7237 [2021-06-05 00:43:09,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2501.3ms TimeCoverageRelationStatistics Valid=512, Invalid=1650, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:43:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2021-06-05 00:43:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 4299. [2021-06-05 00:43:10,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 4297 states have (on average 2.670235047707703) internal successors, (11474), 4298 states have internal predecessors, (11474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 11474 transitions. [2021-06-05 00:43:10,031 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 11474 transitions. Word has length 94 [2021-06-05 00:43:10,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:10,031 INFO L482 AbstractCegarLoop]: Abstraction has 4299 states and 11474 transitions. [2021-06-05 00:43:10,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,031 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 11474 transitions. [2021-06-05 00:43:10,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:10,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:10,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:10,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 00:43:10,035 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:10,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2142664269, now seen corresponding path program 123 times [2021-06-05 00:43:10,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:10,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422231046] [2021-06-05 00:43:10,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:10,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:10,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422231046] [2021-06-05 00:43:10,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422231046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:10,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:10,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:10,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205354334] [2021-06-05 00:43:10,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:10,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:10,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:10,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:10,504 INFO L87 Difference]: Start difference. First operand 4299 states and 11474 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:11,536 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:11,703 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:43:11,878 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:12,054 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:12,273 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:12,443 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:12,658 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:13,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:13,532 INFO L93 Difference]: Finished difference Result 7303 states and 18326 transitions. [2021-06-05 00:43:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:43:13,533 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:13,538 INFO L225 Difference]: With dead ends: 7303 [2021-06-05 00:43:13,538 INFO L226 Difference]: Without dead ends: 7303 [2021-06-05 00:43:13,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2644.3ms TimeCoverageRelationStatistics Valid=544, Invalid=1712, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:43:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-06-05 00:43:13,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 4295. [2021-06-05 00:43:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4293 states have (on average 2.6703936641043557) internal successors, (11464), 4294 states have internal predecessors, (11464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 11464 transitions. [2021-06-05 00:43:13,598 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 11464 transitions. Word has length 94 [2021-06-05 00:43:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:13,598 INFO L482 AbstractCegarLoop]: Abstraction has 4295 states and 11464 transitions. [2021-06-05 00:43:13,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 11464 transitions. [2021-06-05 00:43:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:13,602 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:13,602 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:13,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 00:43:13,602 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:13,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1304163409, now seen corresponding path program 124 times [2021-06-05 00:43:13,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:13,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080858376] [2021-06-05 00:43:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:14,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:14,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080858376] [2021-06-05 00:43:14,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080858376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:14,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:14,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:14,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26217575] [2021-06-05 00:43:14,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:14,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:14,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:14,085 INFO L87 Difference]: Start difference. First operand 4295 states and 11464 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:15,116 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:43:15,271 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:43:15,408 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:15,580 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:15,764 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:15,967 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:16,138 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:16,348 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:17,229 INFO L93 Difference]: Finished difference Result 7369 states and 18470 transitions. [2021-06-05 00:43:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:43:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:17,234 INFO L225 Difference]: With dead ends: 7369 [2021-06-05 00:43:17,234 INFO L226 Difference]: Without dead ends: 7369 [2021-06-05 00:43:17,234 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2796.4ms TimeCoverageRelationStatistics Valid=575, Invalid=1777, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:43:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2021-06-05 00:43:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 4293. [2021-06-05 00:43:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 4291 states have (on average 2.6704730831973897) internal successors, (11459), 4292 states have internal predecessors, (11459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 11459 transitions. [2021-06-05 00:43:17,289 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 11459 transitions. Word has length 94 [2021-06-05 00:43:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:17,289 INFO L482 AbstractCegarLoop]: Abstraction has 4293 states and 11459 transitions. [2021-06-05 00:43:17,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 11459 transitions. [2021-06-05 00:43:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:17,292 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:17,292 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:17,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 00:43:17,292 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:17,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:17,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1125859795, now seen corresponding path program 125 times [2021-06-05 00:43:17,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:17,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834582957] [2021-06-05 00:43:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:17,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:17,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834582957] [2021-06-05 00:43:17,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834582957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:17,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:17,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:17,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739841899] [2021-06-05 00:43:17,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:17,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:17,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:17,790 INFO L87 Difference]: Start difference. First operand 4293 states and 11459 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:18,484 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-06-05 00:43:18,858 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:43:18,982 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:43:19,133 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:43:19,286 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:19,465 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:19,646 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:19,848 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:20,016 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:20,222 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:21,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:21,082 INFO L93 Difference]: Finished difference Result 6753 states and 17231 transitions. [2021-06-05 00:43:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:43:21,083 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:21,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:21,088 INFO L225 Difference]: With dead ends: 6753 [2021-06-05 00:43:21,088 INFO L226 Difference]: Without dead ends: 6753 [2021-06-05 00:43:21,088 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2968.5ms TimeCoverageRelationStatistics Valid=605, Invalid=1845, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 00:43:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2021-06-05 00:43:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 4291. [2021-06-05 00:43:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4291 states, 4289 states have (on average 2.6705525763581255) internal successors, (11454), 4290 states have internal predecessors, (11454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 11454 transitions. [2021-06-05 00:43:21,145 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 11454 transitions. Word has length 94 [2021-06-05 00:43:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:21,145 INFO L482 AbstractCegarLoop]: Abstraction has 4291 states and 11454 transitions. [2021-06-05 00:43:21,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 11454 transitions. [2021-06-05 00:43:21,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:21,148 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:21,149 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:21,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 00:43:21,149 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:21,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:21,149 INFO L82 PathProgramCache]: Analyzing trace with hash 420338423, now seen corresponding path program 126 times [2021-06-05 00:43:21,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:21,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579248754] [2021-06-05 00:43:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:21,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:21,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579248754] [2021-06-05 00:43:21,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579248754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:21,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:21,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:21,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627671021] [2021-06-05 00:43:21,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:21,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:21,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:21,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:21,600 INFO L87 Difference]: Start difference. First operand 4291 states and 11454 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:22,592 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:22,764 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:43:23,123 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:43:23,308 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:43:23,500 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:43:23,795 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:23,960 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:43:24,146 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:24,320 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:43:24,473 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:43:24,639 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:43:24,810 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:43:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:24,816 INFO L93 Difference]: Finished difference Result 8513 states and 21717 transitions. [2021-06-05 00:43:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:43:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:24,822 INFO L225 Difference]: With dead ends: 8513 [2021-06-05 00:43:24,822 INFO L226 Difference]: Without dead ends: 8513 [2021-06-05 00:43:24,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2860.4ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:43:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8513 states. [2021-06-05 00:43:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8513 to 4387. [2021-06-05 00:43:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4385 states have (on average 2.677765108323831) internal successors, (11742), 4386 states have internal predecessors, (11742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 11742 transitions. [2021-06-05 00:43:24,883 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 11742 transitions. Word has length 94 [2021-06-05 00:43:24,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:24,883 INFO L482 AbstractCegarLoop]: Abstraction has 4387 states and 11742 transitions. [2021-06-05 00:43:24,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 11742 transitions. [2021-06-05 00:43:24,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:24,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:24,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:24,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 00:43:24,887 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:24,887 INFO L82 PathProgramCache]: Analyzing trace with hash 130233045, now seen corresponding path program 127 times [2021-06-05 00:43:24,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:24,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214022696] [2021-06-05 00:43:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:25,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:25,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214022696] [2021-06-05 00:43:25,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214022696] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:25,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:25,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:25,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400939235] [2021-06-05 00:43:25,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:25,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:25,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:25,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:25,350 INFO L87 Difference]: Start difference. First operand 4387 states and 11742 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:26,330 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:26,517 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:43:26,719 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:43:26,927 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:43:27,294 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:43:27,486 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:43:27,782 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:43:27,970 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:43:28,166 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:43:28,356 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:43:28,549 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:43:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:28,556 INFO L93 Difference]: Finished difference Result 9187 states and 23513 transitions. [2021-06-05 00:43:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:43:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:28,565 INFO L225 Difference]: With dead ends: 9187 [2021-06-05 00:43:28,565 INFO L226 Difference]: Without dead ends: 9187 [2021-06-05 00:43:28,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2869.2ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:43:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9187 states. [2021-06-05 00:43:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9187 to 4351. [2021-06-05 00:43:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 4349 states have (on average 2.675097723614624) internal successors, (11634), 4350 states have internal predecessors, (11634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 11634 transitions. [2021-06-05 00:43:28,648 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 11634 transitions. Word has length 94 [2021-06-05 00:43:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:28,648 INFO L482 AbstractCegarLoop]: Abstraction has 4351 states and 11634 transitions. [2021-06-05 00:43:28,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 11634 transitions. [2021-06-05 00:43:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:28,652 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:28,652 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:28,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 00:43:28,652 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:28,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1766983107, now seen corresponding path program 128 times [2021-06-05 00:43:28,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:28,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932779110] [2021-06-05 00:43:28,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:29,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:29,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932779110] [2021-06-05 00:43:29,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932779110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:29,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:29,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:29,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161980403] [2021-06-05 00:43:29,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:29,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:29,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:29,086 INFO L87 Difference]: Start difference. First operand 4351 states and 11634 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:30,046 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:30,397 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:30,555 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:43:30,750 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:43:30,949 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:43:31,259 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:43:31,412 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:43:31,564 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:43:31,726 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:43:31,869 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:32,023 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:32,180 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:43:32,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:32,189 INFO L93 Difference]: Finished difference Result 8961 states and 22716 transitions. [2021-06-05 00:43:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:43:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:32,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:32,196 INFO L225 Difference]: With dead ends: 8961 [2021-06-05 00:43:32,196 INFO L226 Difference]: Without dead ends: 8961 [2021-06-05 00:43:32,196 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2719.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:43:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8961 states. [2021-06-05 00:43:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8961 to 4353. [2021-06-05 00:43:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4353 states, 4351 states have (on average 2.675017237416686) internal successors, (11639), 4352 states have internal predecessors, (11639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4353 states to 4353 states and 11639 transitions. [2021-06-05 00:43:32,267 INFO L78 Accepts]: Start accepts. Automaton has 4353 states and 11639 transitions. Word has length 94 [2021-06-05 00:43:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:32,267 INFO L482 AbstractCegarLoop]: Abstraction has 4353 states and 11639 transitions. [2021-06-05 00:43:32,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4353 states and 11639 transitions. [2021-06-05 00:43:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:32,271 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:32,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:32,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 00:43:32,271 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1552647, now seen corresponding path program 129 times [2021-06-05 00:43:32,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:32,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900291109] [2021-06-05 00:43:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:32,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:32,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900291109] [2021-06-05 00:43:32,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900291109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:32,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:32,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:32,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286401982] [2021-06-05 00:43:32,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:32,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:32,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:32,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:32,736 INFO L87 Difference]: Start difference. First operand 4353 states and 11639 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:33,403 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 00:43:33,550 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:43:33,731 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:34,071 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:34,237 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:34,417 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:34,584 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:34,782 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:35,105 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:43:35,255 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:43:35,415 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:43:35,580 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:43:35,731 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:35,899 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:36,051 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:43:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:36,058 INFO L93 Difference]: Finished difference Result 8943 states and 22678 transitions. [2021-06-05 00:43:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:43:36,058 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:36,064 INFO L225 Difference]: With dead ends: 8943 [2021-06-05 00:43:36,064 INFO L226 Difference]: Without dead ends: 8943 [2021-06-05 00:43:36,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2973.4ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:43:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8943 states. [2021-06-05 00:43:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8943 to 4351. [2021-06-05 00:43:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 4349 states have (on average 2.675097723614624) internal successors, (11634), 4350 states have internal predecessors, (11634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 11634 transitions. [2021-06-05 00:43:36,126 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 11634 transitions. Word has length 94 [2021-06-05 00:43:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:36,126 INFO L482 AbstractCegarLoop]: Abstraction has 4351 states and 11634 transitions. [2021-06-05 00:43:36,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 11634 transitions. [2021-06-05 00:43:36,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:36,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:36,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:36,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 00:43:36,130 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:36,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash 676739655, now seen corresponding path program 130 times [2021-06-05 00:43:36,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:36,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929718453] [2021-06-05 00:43:36,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:36,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:36,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929718453] [2021-06-05 00:43:36,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929718453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:36,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:36,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173497505] [2021-06-05 00:43:36,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:36,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:36,595 INFO L87 Difference]: Start difference. First operand 4351 states and 11634 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:37,632 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:37,819 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:43:38,034 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:43:38,195 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:43:38,409 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:43:38,829 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:43:38,998 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:39,196 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:43:39,592 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:43:39,780 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:43:39,952 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:43:40,141 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:43:40,324 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:43:40,540 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:43:40,762 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:43:40,952 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:43:41,132 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:41,320 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:43:41,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:41,329 INFO L93 Difference]: Finished difference Result 10404 states and 26358 transitions. [2021-06-05 00:43:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:43:41,330 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:41,337 INFO L225 Difference]: With dead ends: 10404 [2021-06-05 00:43:41,337 INFO L226 Difference]: Without dead ends: 10404 [2021-06-05 00:43:41,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4124.7ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:43:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10404 states. [2021-06-05 00:43:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10404 to 4363. [2021-06-05 00:43:41,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 4361 states have (on average 2.675991745012612) internal successors, (11670), 4362 states have internal predecessors, (11670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 11670 transitions. [2021-06-05 00:43:41,411 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 11670 transitions. Word has length 94 [2021-06-05 00:43:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:41,411 INFO L482 AbstractCegarLoop]: Abstraction has 4363 states and 11670 transitions. [2021-06-05 00:43:41,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 11670 transitions. [2021-06-05 00:43:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:41,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:41,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:41,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 00:43:41,415 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:41,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:41,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1714559553, now seen corresponding path program 131 times [2021-06-05 00:43:41,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:41,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202268511] [2021-06-05 00:43:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:41,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:41,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202268511] [2021-06-05 00:43:41,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202268511] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:41,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:41,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:41,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668017703] [2021-06-05 00:43:41,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:41,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:41,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:41,881 INFO L87 Difference]: Start difference. First operand 4363 states and 11670 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:42,851 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:43:43,026 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:43:43,212 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:43:43,555 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:43,736 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:43,905 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:44,108 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:44,432 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:43:44,608 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:43:44,789 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:43:44,949 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:45,121 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:43:45,308 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:45,314 INFO L93 Difference]: Finished difference Result 9573 states and 24277 transitions. [2021-06-05 00:43:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:43:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:45,321 INFO L225 Difference]: With dead ends: 9573 [2021-06-05 00:43:45,321 INFO L226 Difference]: Without dead ends: 9573 [2021-06-05 00:43:45,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3104.5ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:43:45,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9573 states. [2021-06-05 00:43:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9573 to 4339. [2021-06-05 00:43:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4339 states, 4337 states have (on average 2.6741987548997) internal successors, (11598), 4338 states have internal predecessors, (11598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4339 states to 4339 states and 11598 transitions. [2021-06-05 00:43:45,387 INFO L78 Accepts]: Start accepts. Automaton has 4339 states and 11598 transitions. Word has length 94 [2021-06-05 00:43:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:45,387 INFO L482 AbstractCegarLoop]: Abstraction has 4339 states and 11598 transitions. [2021-06-05 00:43:45,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4339 states and 11598 transitions. [2021-06-05 00:43:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:45,391 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:45,391 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:45,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 00:43:45,391 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:45,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1741617971, now seen corresponding path program 132 times [2021-06-05 00:43:45,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:45,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368197274] [2021-06-05 00:43:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:45,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:45,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368197274] [2021-06-05 00:43:45,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368197274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:45,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:45,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:45,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173320187] [2021-06-05 00:43:45,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:45,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:45,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:45,832 INFO L87 Difference]: Start difference. First operand 4339 states and 11598 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:46,933 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:47,079 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:47,239 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:43:47,449 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:43:47,647 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:43:47,926 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:43:48,066 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:43:48,207 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:43:48,360 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:43:48,508 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:48,650 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:48,795 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:43:48,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:48,804 INFO L93 Difference]: Finished difference Result 9077 states and 23002 transitions. [2021-06-05 00:43:48,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:43:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:48,811 INFO L225 Difference]: With dead ends: 9077 [2021-06-05 00:43:48,811 INFO L226 Difference]: Without dead ends: 9077 [2021-06-05 00:43:48,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2659.4ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:43:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9077 states. [2021-06-05 00:43:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 4345. [2021-06-05 00:43:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4343 states have (on average 2.673958093483767) internal successors, (11613), 4344 states have internal predecessors, (11613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 11613 transitions. [2021-06-05 00:43:48,881 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 11613 transitions. Word has length 94 [2021-06-05 00:43:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:48,881 INFO L482 AbstractCegarLoop]: Abstraction has 4345 states and 11613 transitions. [2021-06-05 00:43:48,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 11613 transitions. [2021-06-05 00:43:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:48,884 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:48,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:48,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 00:43:48,885 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:48,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:48,885 INFO L82 PathProgramCache]: Analyzing trace with hash -784813571, now seen corresponding path program 133 times [2021-06-05 00:43:48,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:48,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701769897] [2021-06-05 00:43:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:49,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:49,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701769897] [2021-06-05 00:43:49,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701769897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:49,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:49,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:49,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856175662] [2021-06-05 00:43:49,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:49,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:49,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:49,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:49,334 INFO L87 Difference]: Start difference. First operand 4345 states and 11613 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:50,491 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:50,642 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:50,813 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:51,002 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:51,169 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:51,373 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:51,698 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:43:51,845 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:43:51,985 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:43:52,132 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:43:52,267 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:52,410 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:52,556 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:43:52,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:52,565 INFO L93 Difference]: Finished difference Result 9351 states and 23529 transitions. [2021-06-05 00:43:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:43:52,566 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:52,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:52,572 INFO L225 Difference]: With dead ends: 9351 [2021-06-05 00:43:52,573 INFO L226 Difference]: Without dead ends: 9351 [2021-06-05 00:43:52,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2826.1ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:43:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9351 states. [2021-06-05 00:43:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9351 to 4343. [2021-06-05 00:43:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4341 states have (on average 2.674038240036858) internal successors, (11608), 4342 states have internal predecessors, (11608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 11608 transitions. [2021-06-05 00:43:52,637 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 11608 transitions. Word has length 94 [2021-06-05 00:43:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:52,637 INFO L482 AbstractCegarLoop]: Abstraction has 4343 states and 11608 transitions. [2021-06-05 00:43:52,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:52,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 11608 transitions. [2021-06-05 00:43:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:52,640 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:52,640 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:52,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 00:43:52,641 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:52,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1320065741, now seen corresponding path program 134 times [2021-06-05 00:43:52,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:52,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630018595] [2021-06-05 00:43:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:53,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:53,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630018595] [2021-06-05 00:43:53,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630018595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:53,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:53,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:53,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672817310] [2021-06-05 00:43:53,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:53,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:53,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:53,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:53,108 INFO L87 Difference]: Start difference. First operand 4343 states and 11608 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,310 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:54,466 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:43:54,643 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:54,813 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:43:55,013 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:43:55,192 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:43:55,408 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:43:55,741 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 00:43:55,886 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:43:56,028 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:43:56,181 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:43:56,310 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:43:56,463 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:43:56,608 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:43:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:56,614 INFO L93 Difference]: Finished difference Result 9101 states and 23055 transitions. [2021-06-05 00:43:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:43:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:43:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:56,621 INFO L225 Difference]: With dead ends: 9101 [2021-06-05 00:43:56,621 INFO L226 Difference]: Without dead ends: 9101 [2021-06-05 00:43:56,621 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3027.4ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:43:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9101 states. [2021-06-05 00:43:56,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9101 to 4339. [2021-06-05 00:43:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4339 states, 4337 states have (on average 2.6741987548997) internal successors, (11598), 4338 states have internal predecessors, (11598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4339 states to 4339 states and 11598 transitions. [2021-06-05 00:43:56,689 INFO L78 Accepts]: Start accepts. Automaton has 4339 states and 11598 transitions. Word has length 94 [2021-06-05 00:43:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:56,689 INFO L482 AbstractCegarLoop]: Abstraction has 4339 states and 11598 transitions. [2021-06-05 00:43:56,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4339 states and 11598 transitions. [2021-06-05 00:43:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:43:56,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:56,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:56,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 00:43:56,693 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:43:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:56,693 INFO L82 PathProgramCache]: Analyzing trace with hash 476601873, now seen corresponding path program 135 times [2021-06-05 00:43:56,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:56,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040863913] [2021-06-05 00:43:56,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:57,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:57,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:57,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040863913] [2021-06-05 00:43:57,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040863913] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:57,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:57,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:43:57,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113389526] [2021-06-05 00:43:57,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:43:57,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:57,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:43:57,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:43:57,195 INFO L87 Difference]: Start difference. First operand 4339 states and 11598 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,162 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:43:58,338 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:43:58,521 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:43:58,724 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:43:58,884 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:43:59,102 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:43:59,467 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:43:59,674 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:43:59,842 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:00,051 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:44:00,392 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:44:00,573 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:44:00,730 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:44:00,920 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:44:01,086 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:44:01,291 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:44:01,478 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:44:01,666 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:44:01,841 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:02,026 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:44:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:02,035 INFO L93 Difference]: Finished difference Result 10755 states and 27270 transitions. [2021-06-05 00:44:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:44:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:02,042 INFO L225 Difference]: With dead ends: 10755 [2021-06-05 00:44:02,042 INFO L226 Difference]: Without dead ends: 10755 [2021-06-05 00:44:02,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4291.8ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10755 states. [2021-06-05 00:44:02,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10755 to 4375. [2021-06-05 00:44:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 4373 states have (on average 2.6768808598216327) internal successors, (11706), 4374 states have internal predecessors, (11706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 11706 transitions. [2021-06-05 00:44:02,112 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 11706 transitions. Word has length 94 [2021-06-05 00:44:02,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:02,112 INFO L482 AbstractCegarLoop]: Abstraction has 4375 states and 11706 transitions. [2021-06-05 00:44:02,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 11706 transitions. [2021-06-05 00:44:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:02,115 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:02,115 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:02,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 00:44:02,116 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1514421771, now seen corresponding path program 136 times [2021-06-05 00:44:02,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:02,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071939133] [2021-06-05 00:44:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:02,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:02,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071939133] [2021-06-05 00:44:02,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071939133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:02,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:02,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:02,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121099344] [2021-06-05 00:44:02,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:02,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:02,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:02,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:02,595 INFO L87 Difference]: Start difference. First operand 4375 states and 11706 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:03,407 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-05 00:44:03,576 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:03,753 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:44:03,943 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:44:04,141 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:44:04,528 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:04,698 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:04,888 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:05,062 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:05,279 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:05,665 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:44:05,833 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:44:05,993 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:44:06,170 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:44:06,338 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:44:06,539 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:44:06,707 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:06,864 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:44:07,041 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:44:07,211 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:07,383 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:07,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:07,393 INFO L93 Difference]: Finished difference Result 11024 states and 27730 transitions. [2021-06-05 00:44:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:44:07,394 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:07,401 INFO L225 Difference]: With dead ends: 11024 [2021-06-05 00:44:07,401 INFO L226 Difference]: Without dead ends: 11024 [2021-06-05 00:44:07,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4232.7ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11024 states. [2021-06-05 00:44:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11024 to 4363. [2021-06-05 00:44:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 4361 states have (on average 2.675991745012612) internal successors, (11670), 4362 states have internal predecessors, (11670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 11670 transitions. [2021-06-05 00:44:07,473 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 11670 transitions. Word has length 94 [2021-06-05 00:44:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:07,473 INFO L482 AbstractCegarLoop]: Abstraction has 4363 states and 11670 transitions. [2021-06-05 00:44:07,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 11670 transitions. [2021-06-05 00:44:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:07,476 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:07,476 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:07,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 00:44:07,476 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:07,477 INFO L82 PathProgramCache]: Analyzing trace with hash -450607531, now seen corresponding path program 137 times [2021-06-05 00:44:07,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:07,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170422634] [2021-06-05 00:44:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:07,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:07,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170422634] [2021-06-05 00:44:07,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170422634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:07,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:07,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:07,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913119001] [2021-06-05 00:44:07,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:07,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:07,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:07,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:07,960 INFO L87 Difference]: Start difference. First operand 4363 states and 11670 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:08,932 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:09,111 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:44:09,494 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:09,652 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:09,826 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:10,014 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:10,184 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:10,391 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:10,726 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:44:10,884 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:44:11,051 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:44:11,210 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:11,370 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:44:11,542 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:11,549 INFO L93 Difference]: Finished difference Result 9851 states and 24983 transitions. [2021-06-05 00:44:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:44:11,549 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:11,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:11,555 INFO L225 Difference]: With dead ends: 9851 [2021-06-05 00:44:11,555 INFO L226 Difference]: Without dead ends: 9851 [2021-06-05 00:44:11,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3184.4ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:44:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2021-06-05 00:44:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 4315. [2021-06-05 00:44:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 4313 states have (on average 2.6723858103408302) internal successors, (11526), 4314 states have internal predecessors, (11526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 11526 transitions. [2021-06-05 00:44:11,623 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 11526 transitions. Word has length 94 [2021-06-05 00:44:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:11,624 INFO L482 AbstractCegarLoop]: Abstraction has 4315 states and 11526 transitions. [2021-06-05 00:44:11,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 11526 transitions. [2021-06-05 00:44:11,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:11,627 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:11,627 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:11,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 00:44:11,627 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:11,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1005207761, now seen corresponding path program 138 times [2021-06-05 00:44:11,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:11,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975898006] [2021-06-05 00:44:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:12,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:12,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975898006] [2021-06-05 00:44:12,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975898006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:12,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:12,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:12,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556757266] [2021-06-05 00:44:12,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:12,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:12,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:12,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:12,062 INFO L87 Difference]: Start difference. First operand 4315 states and 11526 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:13,178 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:13,341 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:13,520 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:44:13,721 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:44:13,922 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:44:14,462 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:44:14,598 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:44:14,837 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:44:14,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:14,979 INFO L93 Difference]: Finished difference Result 9237 states and 23415 transitions. [2021-06-05 00:44:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:44:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:14,986 INFO L225 Difference]: With dead ends: 9237 [2021-06-05 00:44:14,986 INFO L226 Difference]: Without dead ends: 9237 [2021-06-05 00:44:14,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2520.6ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:44:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9237 states. [2021-06-05 00:44:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9237 to 4323. [2021-06-05 00:44:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 4321 states have (on average 2.6720666512381395) internal successors, (11546), 4322 states have internal predecessors, (11546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 11546 transitions. [2021-06-05 00:44:15,057 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 11546 transitions. Word has length 94 [2021-06-05 00:44:15,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:15,057 INFO L482 AbstractCegarLoop]: Abstraction has 4323 states and 11546 transitions. [2021-06-05 00:44:15,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 11546 transitions. [2021-06-05 00:44:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:15,060 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:15,060 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:15,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 00:44:15,060 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1521223781, now seen corresponding path program 139 times [2021-06-05 00:44:15,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:15,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942076242] [2021-06-05 00:44:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:15,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:15,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942076242] [2021-06-05 00:44:15,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942076242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:15,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:15,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:15,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500231415] [2021-06-05 00:44:15,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:15,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:15,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:15,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:15,517 INFO L87 Difference]: Start difference. First operand 4323 states and 11546 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:16,647 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:16,810 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:16,986 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:17,177 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:17,347 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:17,551 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:18,135 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:44:18,283 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:44:18,524 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:44:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:18,666 INFO L93 Difference]: Finished difference Result 9511 states and 23942 transitions. [2021-06-05 00:44:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:44:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:18,672 INFO L225 Difference]: With dead ends: 9511 [2021-06-05 00:44:18,672 INFO L226 Difference]: Without dead ends: 9511 [2021-06-05 00:44:18,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2735.4ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:44:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9511 states. [2021-06-05 00:44:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9511 to 4321. [2021-06-05 00:44:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 4319 states have (on average 2.6721463301690207) internal successors, (11541), 4320 states have internal predecessors, (11541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 11541 transitions. [2021-06-05 00:44:18,739 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 11541 transitions. Word has length 94 [2021-06-05 00:44:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:18,739 INFO L482 AbstractCegarLoop]: Abstraction has 4321 states and 11541 transitions. [2021-06-05 00:44:18,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 11541 transitions. [2021-06-05 00:44:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:18,742 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:18,742 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:18,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 00:44:18,742 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:18,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:18,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2056475951, now seen corresponding path program 140 times [2021-06-05 00:44:18,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:18,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151653011] [2021-06-05 00:44:18,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:19,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:19,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151653011] [2021-06-05 00:44:19,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151653011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:19,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:19,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:19,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259278027] [2021-06-05 00:44:19,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:19,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:19,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:19,210 INFO L87 Difference]: Start difference. First operand 4321 states and 11541 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:20,299 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:20,469 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:20,635 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:20,803 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:21,003 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:21,170 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:21,391 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:21,843 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-05 00:44:21,969 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:44:22,101 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:44:22,350 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:44:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:22,499 INFO L93 Difference]: Finished difference Result 9577 states and 24086 transitions. [2021-06-05 00:44:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:44:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:22,507 INFO L225 Difference]: With dead ends: 9577 [2021-06-05 00:44:22,507 INFO L226 Difference]: Without dead ends: 9577 [2021-06-05 00:44:22,508 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2894.1ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:44:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-06-05 00:44:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 4317. [2021-06-05 00:44:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4317 states, 4315 states have (on average 2.672305909617613) internal successors, (11531), 4316 states have internal predecessors, (11531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4317 states to 4317 states and 11531 transitions. [2021-06-05 00:44:22,579 INFO L78 Accepts]: Start accepts. Automaton has 4317 states and 11531 transitions. Word has length 94 [2021-06-05 00:44:22,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:22,579 INFO L482 AbstractCegarLoop]: Abstraction has 4317 states and 11531 transitions. [2021-06-05 00:44:22,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:22,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4317 states and 11531 transitions. [2021-06-05 00:44:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:22,582 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:22,582 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:22,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 00:44:22,583 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1048877009, now seen corresponding path program 141 times [2021-06-05 00:44:22,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:22,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782480664] [2021-06-05 00:44:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:23,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:23,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:23,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782480664] [2021-06-05 00:44:23,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782480664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:23,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:23,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:23,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640435464] [2021-06-05 00:44:23,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:23,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:23,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:23,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:23,107 INFO L87 Difference]: Start difference. First operand 4317 states and 11531 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:24,262 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:44:24,409 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:24,547 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:24,711 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:24,890 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:25,095 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:25,280 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:25,486 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:26,064 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:44:26,196 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:44:26,436 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:44:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:26,574 INFO L93 Difference]: Finished difference Result 9279 states and 23506 transitions. [2021-06-05 00:44:26,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:44:26,574 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:26,581 INFO L225 Difference]: With dead ends: 9279 [2021-06-05 00:44:26,581 INFO L226 Difference]: Without dead ends: 9279 [2021-06-05 00:44:26,582 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3053.3ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:44:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2021-06-05 00:44:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 4315. [2021-06-05 00:44:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 4313 states have (on average 2.6723858103408302) internal successors, (11526), 4314 states have internal predecessors, (11526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 11526 transitions. [2021-06-05 00:44:26,651 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 11526 transitions. Word has length 94 [2021-06-05 00:44:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:26,652 INFO L482 AbstractCegarLoop]: Abstraction has 4315 states and 11526 transitions. [2021-06-05 00:44:26,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 11526 transitions. [2021-06-05 00:44:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:26,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:26,655 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:26,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 00:44:26,655 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:26,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:26,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1458215215, now seen corresponding path program 142 times [2021-06-05 00:44:26,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:26,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3277867] [2021-06-05 00:44:26,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:27,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:27,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:27,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3277867] [2021-06-05 00:44:27,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3277867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:27,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:27,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:27,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316748503] [2021-06-05 00:44:27,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:27,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:27,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:27,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:27,148 INFO L87 Difference]: Start difference. First operand 4315 states and 11526 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:27,990 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:28,149 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:28,281 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:44:28,455 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:44:28,641 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:44:28,848 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:44:29,009 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:44:29,233 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:44:29,574 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:29,747 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:29,996 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:44:30,168 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:30,381 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:44:30,752 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:44:30,939 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:44:31,085 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:44:31,280 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:44:31,445 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:44:31,648 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:44:31,799 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:44:31,992 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:44:32,146 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:32,338 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:44:32,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:32,348 INFO L93 Difference]: Finished difference Result 11106 states and 28182 transitions. [2021-06-05 00:44:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:44:32,348 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:32,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:32,356 INFO L225 Difference]: With dead ends: 11106 [2021-06-05 00:44:32,356 INFO L226 Difference]: Without dead ends: 11106 [2021-06-05 00:44:32,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 4551.3ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:44:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2021-06-05 00:44:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 4363. [2021-06-05 00:44:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 4361 states have (on average 2.675991745012612) internal successors, (11670), 4362 states have internal predecessors, (11670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 11670 transitions. [2021-06-05 00:44:32,444 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 11670 transitions. Word has length 94 [2021-06-05 00:44:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:32,444 INFO L482 AbstractCegarLoop]: Abstraction has 4363 states and 11670 transitions. [2021-06-05 00:44:32,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 11670 transitions. [2021-06-05 00:44:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:32,448 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:32,448 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:32,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 00:44:32,448 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:32,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:32,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1798932183, now seen corresponding path program 143 times [2021-06-05 00:44:32,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:32,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102250507] [2021-06-05 00:44:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:32,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:32,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102250507] [2021-06-05 00:44:32,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102250507] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:32,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:32,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:32,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860606031] [2021-06-05 00:44:32,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:32,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:32,964 INFO L87 Difference]: Start difference. First operand 4363 states and 11670 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,816 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:33,981 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:34,118 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:44:34,299 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:44:34,501 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:44:34,728 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:44:35,131 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:35,303 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:35,497 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:35,706 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:35,887 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:36,124 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:36,524 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:44:36,695 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:44:36,850 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:44:37,047 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:44:37,205 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:44:37,410 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:44:37,584 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:37,729 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:44:37,913 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:44:38,067 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:38,243 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:38,253 INFO L93 Difference]: Finished difference Result 11375 states and 28642 transitions. [2021-06-05 00:44:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:44:38,254 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:38,262 INFO L225 Difference]: With dead ends: 11375 [2021-06-05 00:44:38,262 INFO L226 Difference]: Without dead ends: 11375 [2021-06-05 00:44:38,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4598.8ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:44:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2021-06-05 00:44:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 4351. [2021-06-05 00:44:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 4349 states have (on average 2.675097723614624) internal successors, (11634), 4350 states have internal predecessors, (11634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 11634 transitions. [2021-06-05 00:44:38,339 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 11634 transitions. Word has length 94 [2021-06-05 00:44:38,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:38,339 INFO L482 AbstractCegarLoop]: Abstraction has 4351 states and 11634 transitions. [2021-06-05 00:44:38,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:38,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 11634 transitions. [2021-06-05 00:44:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:38,343 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:38,343 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:38,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 00:44:38,343 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash 531005811, now seen corresponding path program 144 times [2021-06-05 00:44:38,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:38,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907665205] [2021-06-05 00:44:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:38,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:38,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907665205] [2021-06-05 00:44:38,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907665205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:38,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:38,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:38,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840932881] [2021-06-05 00:44:38,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:38,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:38,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:38,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:38,857 INFO L87 Difference]: Start difference. First operand 4351 states and 11634 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,695 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:39,857 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:40,000 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:44:40,216 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:44:40,632 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:40,770 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:40,935 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:41,115 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:41,314 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:41,501 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:41,712 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:42,083 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:44:42,261 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:44:42,409 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:44:42,569 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:44:42,722 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:44:42,889 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:44:43,037 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:43,179 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:44:43,336 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:44:43,497 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:43,655 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:43,665 INFO L93 Difference]: Finished difference Result 11419 states and 28740 transitions. [2021-06-05 00:44:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:44:43,665 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:43,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:43,672 INFO L225 Difference]: With dead ends: 11419 [2021-06-05 00:44:43,673 INFO L226 Difference]: Without dead ends: 11419 [2021-06-05 00:44:43,673 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4279.1ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:44:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11419 states. [2021-06-05 00:44:43,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11419 to 4327. [2021-06-05 00:44:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 4325 states have (on average 2.6732947976878614) internal successors, (11562), 4326 states have internal predecessors, (11562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 11562 transitions. [2021-06-05 00:44:43,749 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 11562 transitions. Word has length 94 [2021-06-05 00:44:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:43,749 INFO L482 AbstractCegarLoop]: Abstraction has 4327 states and 11562 transitions. [2021-06-05 00:44:43,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:43,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 11562 transitions. [2021-06-05 00:44:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:43,752 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:43,752 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:43,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 00:44:43,753 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:43,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1570959339, now seen corresponding path program 145 times [2021-06-05 00:44:43,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:43,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902149337] [2021-06-05 00:44:43,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:44,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:44,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902149337] [2021-06-05 00:44:44,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902149337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:44,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:44,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:44,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289361814] [2021-06-05 00:44:44,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:44,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:44,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:44,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:44,264 INFO L87 Difference]: Start difference. First operand 4327 states and 11562 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:45,106 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:45,264 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:44:45,626 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:44:45,774 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:45,915 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:46,084 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:46,270 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:46,472 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:46,650 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:46,858 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:47,227 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:44:47,372 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:44:47,525 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:44:47,658 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:44:47,801 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:44:47,949 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:44:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:47,955 INFO L93 Difference]: Finished difference Result 10023 states and 25408 transitions. [2021-06-05 00:44:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:44:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:47,963 INFO L225 Difference]: With dead ends: 10023 [2021-06-05 00:44:47,963 INFO L226 Difference]: Without dead ends: 10023 [2021-06-05 00:44:47,963 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3268.5ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:44:47,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10023 states. [2021-06-05 00:44:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10023 to 4303. [2021-06-05 00:44:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 4301 states have (on average 2.671471750755638) internal successors, (11490), 4302 states have internal predecessors, (11490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 11490 transitions. [2021-06-05 00:44:48,079 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 11490 transitions. Word has length 94 [2021-06-05 00:44:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:48,079 INFO L482 AbstractCegarLoop]: Abstraction has 4303 states and 11490 transitions. [2021-06-05 00:44:48,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 11490 transitions. [2021-06-05 00:44:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:48,082 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:48,082 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:48,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 00:44:48,083 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:48,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1220806401, now seen corresponding path program 146 times [2021-06-05 00:44:48,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:48,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442947552] [2021-06-05 00:44:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:48,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:48,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:48,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442947552] [2021-06-05 00:44:48,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442947552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:48,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:48,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:48,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493148383] [2021-06-05 00:44:48,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:48,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:48,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:48,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:48,555 INFO L87 Difference]: Start difference. First operand 4303 states and 11490 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:49,388 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-06-05 00:44:49,641 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:49,808 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:49,977 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:44:50,178 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:44:50,389 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:44:50,926 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-06-05 00:44:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:51,398 INFO L93 Difference]: Finished difference Result 8023 states and 20365 transitions. [2021-06-05 00:44:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:44:51,398 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:51,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:51,406 INFO L225 Difference]: With dead ends: 8023 [2021-06-05 00:44:51,406 INFO L226 Difference]: Without dead ends: 8023 [2021-06-05 00:44:51,406 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2532.6ms TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:44:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8023 states. [2021-06-05 00:44:51,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8023 to 4313. [2021-06-05 00:44:51,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4311 states have (on average 2.6710739967524937) internal successors, (11515), 4312 states have internal predecessors, (11515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 11515 transitions. [2021-06-05 00:44:51,478 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 11515 transitions. Word has length 94 [2021-06-05 00:44:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:51,478 INFO L482 AbstractCegarLoop]: Abstraction has 4313 states and 11515 transitions. [2021-06-05 00:44:51,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 11515 transitions. [2021-06-05 00:44:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:51,482 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:51,482 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:51,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 00:44:51,482 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:51,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1305625141, now seen corresponding path program 147 times [2021-06-05 00:44:51,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:51,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585424314] [2021-06-05 00:44:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:51,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:51,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585424314] [2021-06-05 00:44:51,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585424314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:51,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:51,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:51,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124508205] [2021-06-05 00:44:51,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:51,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:51,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:51,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:51,976 INFO L87 Difference]: Start difference. First operand 4313 states and 11515 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:52,959 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:44:53,098 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:53,269 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:44:53,448 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:53,642 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:53,816 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:54,025 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:55,067 INFO L93 Difference]: Finished difference Result 8297 states and 20892 transitions. [2021-06-05 00:44:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:44:55,067 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:55,073 INFO L225 Difference]: With dead ends: 8297 [2021-06-05 00:44:55,073 INFO L226 Difference]: Without dead ends: 8297 [2021-06-05 00:44:55,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2697.6ms TimeCoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:44:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8297 states. [2021-06-05 00:44:55,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8297 to 4311. [2021-06-05 00:44:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 4309 states have (on average 2.6711533998607564) internal successors, (11510), 4310 states have internal predecessors, (11510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 11510 transitions. [2021-06-05 00:44:55,136 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 11510 transitions. Word has length 94 [2021-06-05 00:44:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:55,137 INFO L482 AbstractCegarLoop]: Abstraction has 4311 states and 11510 transitions. [2021-06-05 00:44:55,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 11510 transitions. [2021-06-05 00:44:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:55,141 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:55,141 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:55,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 00:44:55,141 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1840877311, now seen corresponding path program 148 times [2021-06-05 00:44:55,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:55,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347323760] [2021-06-05 00:44:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:55,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:55,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347323760] [2021-06-05 00:44:55,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347323760] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:55,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:55,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:55,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061800374] [2021-06-05 00:44:55,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:55,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:55,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:55,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:55,633 INFO L87 Difference]: Start difference. First operand 4311 states and 11510 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:56,752 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:44:56,915 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:44:57,091 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:44:57,290 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:44:57,497 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:44:57,672 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:44:57,886 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:44:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:58,888 INFO L93 Difference]: Finished difference Result 8363 states and 21036 transitions. [2021-06-05 00:44:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 00:44:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:44:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:58,895 INFO L225 Difference]: With dead ends: 8363 [2021-06-05 00:44:58,895 INFO L226 Difference]: Without dead ends: 8363 [2021-06-05 00:44:58,896 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 2853.1ms TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 00:44:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8363 states. [2021-06-05 00:44:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8363 to 4307. [2021-06-05 00:44:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4305 states have (on average 2.671312427409988) internal successors, (11500), 4306 states have internal predecessors, (11500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 11500 transitions. [2021-06-05 00:44:58,961 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 11500 transitions. Word has length 94 [2021-06-05 00:44:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:58,961 INFO L482 AbstractCegarLoop]: Abstraction has 4307 states and 11500 transitions. [2021-06-05 00:44:58,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 11500 transitions. [2021-06-05 00:44:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:44:58,965 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:58,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:58,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 00:44:58,965 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:44:58,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:58,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1264475649, now seen corresponding path program 149 times [2021-06-05 00:44:58,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:58,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275562730] [2021-06-05 00:44:58,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:59,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:59,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275562730] [2021-06-05 00:44:59,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275562730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:59,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:59,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:44:59,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482659991] [2021-06-05 00:44:59,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:44:59,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:59,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:44:59,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:44:59,492 INFO L87 Difference]: Start difference. First operand 4307 states and 11500 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:00,615 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:00,770 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:00,914 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:01,081 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:01,271 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:01,511 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:01,727 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:01,988 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:03,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:03,056 INFO L93 Difference]: Finished difference Result 8429 states and 21180 transitions. [2021-06-05 00:45:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:03,057 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:03,063 INFO L225 Difference]: With dead ends: 8429 [2021-06-05 00:45:03,063 INFO L226 Difference]: Without dead ends: 8429 [2021-06-05 00:45:03,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3118.2ms TimeCoverageRelationStatistics Valid=590, Invalid=1762, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 00:45:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8429 states. [2021-06-05 00:45:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8429 to 4305. [2021-06-05 00:45:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4303 states have (on average 2.6713920520567047) internal successors, (11495), 4304 states have internal predecessors, (11495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11495 transitions. [2021-06-05 00:45:03,127 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11495 transitions. Word has length 94 [2021-06-05 00:45:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:03,128 INFO L482 AbstractCegarLoop]: Abstraction has 4305 states and 11495 transitions. [2021-06-05 00:45:03,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11495 transitions. [2021-06-05 00:45:03,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:03,131 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:03,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:03,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 00:45:03,131 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:03,131 INFO L82 PathProgramCache]: Analyzing trace with hash -997465141, now seen corresponding path program 150 times [2021-06-05 00:45:03,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:03,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037625186] [2021-06-05 00:45:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:03,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:03,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037625186] [2021-06-05 00:45:03,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037625186] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:03,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:03,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:03,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335698053] [2021-06-05 00:45:03,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:03,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:03,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:03,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:03,639 INFO L87 Difference]: Start difference. First operand 4305 states and 11495 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:04,828 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:04,970 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:05,140 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:05,291 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:05,475 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:05,726 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:05,971 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:06,164 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:06,392 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:06,883 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 00:45:07,146 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 00:45:07,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:07,491 INFO L93 Difference]: Finished difference Result 8085 states and 20499 transitions. [2021-06-05 00:45:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:45:07,492 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:07,497 INFO L225 Difference]: With dead ends: 8085 [2021-06-05 00:45:07,497 INFO L226 Difference]: Without dead ends: 8085 [2021-06-05 00:45:07,497 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3416.5ms TimeCoverageRelationStatistics Valid=620, Invalid=1830, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 00:45:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2021-06-05 00:45:07,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 4303. [2021-06-05 00:45:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 4301 states have (on average 2.671471750755638) internal successors, (11490), 4302 states have internal predecessors, (11490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 11490 transitions. [2021-06-05 00:45:07,557 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 11490 transitions. Word has length 94 [2021-06-05 00:45:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:07,557 INFO L482 AbstractCegarLoop]: Abstraction has 4303 states and 11490 transitions. [2021-06-05 00:45:07,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 11490 transitions. [2021-06-05 00:45:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:07,561 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:07,561 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:07,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 00:45:07,561 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:07,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1626842101, now seen corresponding path program 151 times [2021-06-05 00:45:07,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:07,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474474292] [2021-06-05 00:45:07,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:08,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:08,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:08,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474474292] [2021-06-05 00:45:08,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474474292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:08,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:08,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:08,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655893145] [2021-06-05 00:45:08,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:08,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:08,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:08,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:08,202 INFO L87 Difference]: Start difference. First operand 4303 states and 11490 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:08,971 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:45:09,140 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:45:09,268 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:45:09,437 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:09,570 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:45:09,772 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:45:09,953 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:45:10,159 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:45:10,322 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:45:10,544 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:45:10,850 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:11,006 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:11,196 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:11,442 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:45:11,614 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:11,828 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:45:12,355 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:45:12,486 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:45:12,683 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-06-05 00:45:12,823 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:45:13,024 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-06-05 00:45:13,178 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:45:13,388 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-06-05 00:45:13,548 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:13,748 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:45:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:13,758 INFO L93 Difference]: Finished difference Result 8546 states and 21791 transitions. [2021-06-05 00:45:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:45:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:13,765 INFO L225 Difference]: With dead ends: 8546 [2021-06-05 00:45:13,765 INFO L226 Difference]: Without dead ends: 8546 [2021-06-05 00:45:13,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 5072.0ms TimeCoverageRelationStatistics Valid=935, Invalid=2371, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:45:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8546 states. [2021-06-05 00:45:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8546 to 4363. [2021-06-05 00:45:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 4361 states have (on average 2.675991745012612) internal successors, (11670), 4362 states have internal predecessors, (11670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 11670 transitions. [2021-06-05 00:45:13,833 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 11670 transitions. Word has length 94 [2021-06-05 00:45:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:13,833 INFO L482 AbstractCegarLoop]: Abstraction has 4363 states and 11670 transitions. [2021-06-05 00:45:13,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 11670 transitions. [2021-06-05 00:45:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:13,837 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:13,837 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:13,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 00:45:13,837 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:13,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:13,837 INFO L82 PathProgramCache]: Analyzing trace with hash -589022203, now seen corresponding path program 152 times [2021-06-05 00:45:13,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:13,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593768639] [2021-06-05 00:45:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:14,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:14,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593768639] [2021-06-05 00:45:14,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593768639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:14,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:14,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:14,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140922998] [2021-06-05 00:45:14,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:14,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:14,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:14,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:14,414 INFO L87 Difference]: Start difference. First operand 4363 states and 11670 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:15,301 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:45:15,439 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:45:15,604 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:15,751 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:45:15,945 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:45:16,147 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-06-05 00:45:16,373 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:45:16,740 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:16,905 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:17,104 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:17,299 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:17,494 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:17,667 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:17,896 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:18,273 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:45:18,442 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-06-05 00:45:18,593 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:45:18,771 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-06-05 00:45:18,911 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:45:19,121 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-06-05 00:45:19,298 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:19,436 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:45:19,632 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:45:19,766 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:19,943 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:19,952 INFO L93 Difference]: Finished difference Result 8815 states and 22251 transitions. [2021-06-05 00:45:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:45:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:19,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:19,958 INFO L225 Difference]: With dead ends: 8815 [2021-06-05 00:45:19,958 INFO L226 Difference]: Without dead ends: 8815 [2021-06-05 00:45:19,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 4912.9ms TimeCoverageRelationStatistics Valid=917, Invalid=2389, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:45:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8815 states. [2021-06-05 00:45:20,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8815 to 4351. [2021-06-05 00:45:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 4349 states have (on average 2.675097723614624) internal successors, (11634), 4350 states have internal predecessors, (11634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 11634 transitions. [2021-06-05 00:45:20,021 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 11634 transitions. Word has length 94 [2021-06-05 00:45:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:20,021 INFO L482 AbstractCegarLoop]: Abstraction has 4351 states and 11634 transitions. [2021-06-05 00:45:20,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 11634 transitions. [2021-06-05 00:45:20,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:20,025 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:20,025 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:20,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 00:45:20,025 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:20,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:20,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1740915791, now seen corresponding path program 153 times [2021-06-05 00:45:20,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:20,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432785114] [2021-06-05 00:45:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:20,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:20,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432785114] [2021-06-05 00:45:20,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432785114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:20,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:20,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:20,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086176608] [2021-06-05 00:45:20,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:20,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:20,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:20,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:20,549 INFO L87 Difference]: Start difference. First operand 4351 states and 11634 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:21,358 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:45:21,485 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:45:21,638 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:21,786 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:45:21,968 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:45:22,373 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:22,526 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:22,667 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:22,846 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:23,043 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:23,248 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:23,426 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:23,635 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:24,024 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:45:24,176 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:45:24,308 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:45:24,489 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:45:24,627 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:45:24,811 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 00:45:24,959 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:25,091 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:45:25,248 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-06-05 00:45:25,389 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:25,549 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:25,558 INFO L93 Difference]: Finished difference Result 8859 states and 22349 transitions. [2021-06-05 00:45:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:25,559 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:25,564 INFO L225 Difference]: With dead ends: 8859 [2021-06-05 00:45:25,564 INFO L226 Difference]: Without dead ends: 8859 [2021-06-05 00:45:25,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 4440.3ms TimeCoverageRelationStatistics Valid=868, Invalid=2324, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:45:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8859 states. [2021-06-05 00:45:25,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8859 to 4327. [2021-06-05 00:45:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4327 states, 4325 states have (on average 2.6732947976878614) internal successors, (11562), 4326 states have internal predecessors, (11562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4327 states to 4327 states and 11562 transitions. [2021-06-05 00:45:25,628 INFO L78 Accepts]: Start accepts. Automaton has 4327 states and 11562 transitions. Word has length 94 [2021-06-05 00:45:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:25,628 INFO L482 AbstractCegarLoop]: Abstraction has 4327 states and 11562 transitions. [2021-06-05 00:45:25,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4327 states and 11562 transitions. [2021-06-05 00:45:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:25,632 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:25,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:25,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 00:45:25,632 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash -361049359, now seen corresponding path program 154 times [2021-06-05 00:45:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:25,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325111595] [2021-06-05 00:45:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:26,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:26,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325111595] [2021-06-05 00:45:26,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325111595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:26,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:26,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:26,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591734889] [2021-06-05 00:45:26,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:26,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:26,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:26,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:26,165 INFO L87 Difference]: Start difference. First operand 4327 states and 11562 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,874 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 00:45:27,021 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 00:45:27,148 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:45:27,322 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 00:45:27,755 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:27,888 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:28,054 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:28,205 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:28,389 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:28,573 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:28,789 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:28,963 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:29,185 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:29,557 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:45:29,697 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:45:29,828 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:45:29,972 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-06-05 00:45:30,111 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:45:30,260 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-06-05 00:45:30,394 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:30,521 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:45:30,663 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 00:45:30,799 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:30,941 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:30,951 INFO L93 Difference]: Finished difference Result 8914 states and 22470 transitions. [2021-06-05 00:45:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:45:30,951 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:30,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:30,957 INFO L225 Difference]: With dead ends: 8914 [2021-06-05 00:45:30,957 INFO L226 Difference]: Without dead ends: 8914 [2021-06-05 00:45:30,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4235.7ms TimeCoverageRelationStatistics Valid=821, Invalid=2259, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:45:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8914 states. [2021-06-05 00:45:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8914 to 4315. [2021-06-05 00:45:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 4313 states have (on average 2.6723858103408302) internal successors, (11526), 4314 states have internal predecessors, (11526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 11526 transitions. [2021-06-05 00:45:31,020 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 11526 transitions. Word has length 94 [2021-06-05 00:45:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:31,020 INFO L482 AbstractCegarLoop]: Abstraction has 4315 states and 11526 transitions. [2021-06-05 00:45:31,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 11526 transitions. [2021-06-05 00:45:31,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:31,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:31,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:31,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 00:45:31,024 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:31,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:31,024 INFO L82 PathProgramCache]: Analyzing trace with hash 892831425, now seen corresponding path program 155 times [2021-06-05 00:45:31,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:31,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762283632] [2021-06-05 00:45:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:31,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:31,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762283632] [2021-06-05 00:45:31,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762283632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:31,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:31,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:31,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268181364] [2021-06-05 00:45:31,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:31,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:31,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:31,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:31,563 INFO L87 Difference]: Start difference. First operand 4315 states and 11526 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:32,378 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:45:32,846 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:32,971 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:33,125 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-06-05 00:45:33,268 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-06-05 00:45:33,462 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:33,650 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:33,844 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-06-05 00:45:34,025 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:34,268 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:45:34,623 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-06-05 00:45:34,765 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-05 00:45:34,913 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-06-05 00:45:35,047 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:45:35,185 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-06-05 00:45:35,328 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:45:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:35,334 INFO L93 Difference]: Finished difference Result 7371 states and 18767 transitions. [2021-06-05 00:45:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:45:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:35,341 INFO L225 Difference]: With dead ends: 7371 [2021-06-05 00:45:35,341 INFO L226 Difference]: Without dead ends: 7371 [2021-06-05 00:45:35,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3384.1ms TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 00:45:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7371 states. [2021-06-05 00:45:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7371 to 4291. [2021-06-05 00:45:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4291 states, 4289 states have (on average 2.6705525763581255) internal successors, (11454), 4290 states have internal predecessors, (11454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 11454 transitions. [2021-06-05 00:45:35,403 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 11454 transitions. Word has length 94 [2021-06-05 00:45:35,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:35,403 INFO L482 AbstractCegarLoop]: Abstraction has 4291 states and 11454 transitions. [2021-06-05 00:45:35,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 11454 transitions. [2021-06-05 00:45:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:35,407 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:35,407 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:35,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 00:45:35,407 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash -657056875, now seen corresponding path program 156 times [2021-06-05 00:45:35,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:35,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458198448] [2021-06-05 00:45:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:35,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:35,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458198448] [2021-06-05 00:45:35,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458198448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:35,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:35,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 00:45:35,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039695999] [2021-06-05 00:45:35,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 00:45:35,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:35,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 00:45:35,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:45:35,712 INFO L87 Difference]: Start difference. First operand 4291 states and 11454 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:36,174 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-06-05 00:45:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:36,717 INFO L93 Difference]: Finished difference Result 5204 states and 13247 transitions. [2021-06-05 00:45:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:45:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:36,721 INFO L225 Difference]: With dead ends: 5204 [2021-06-05 00:45:36,721 INFO L226 Difference]: Without dead ends: 5204 [2021-06-05 00:45:36,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 921.7ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:45:36,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2021-06-05 00:45:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4313. [2021-06-05 00:45:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4311 states have (on average 2.669218278821619) internal successors, (11507), 4312 states have internal predecessors, (11507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 11507 transitions. [2021-06-05 00:45:36,779 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 11507 transitions. Word has length 94 [2021-06-05 00:45:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:36,779 INFO L482 AbstractCegarLoop]: Abstraction has 4313 states and 11507 transitions. [2021-06-05 00:45:36,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 11507 transitions. [2021-06-05 00:45:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:36,783 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:36,783 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:36,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 00:45:36,783 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:36,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1162939367, now seen corresponding path program 157 times [2021-06-05 00:45:36,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:36,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130694854] [2021-06-05 00:45:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:37,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:37,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130694854] [2021-06-05 00:45:37,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130694854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:37,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:37,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:37,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944954508] [2021-06-05 00:45:37,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:37,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:37,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:37,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:37,333 INFO L87 Difference]: Start difference. First operand 4313 states and 11507 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:38,304 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:45:38,673 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:38,844 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:39,033 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:39,254 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:39,529 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:45:39,676 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:45:39,828 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:45:39,983 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:45:40,121 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:40,268 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:40,421 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:45:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:40,428 INFO L93 Difference]: Finished difference Result 8221 states and 21079 transitions. [2021-06-05 00:45:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:45:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:40,434 INFO L225 Difference]: With dead ends: 8221 [2021-06-05 00:45:40,434 INFO L226 Difference]: Without dead ends: 8221 [2021-06-05 00:45:40,434 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2774.6ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:45:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2021-06-05 00:45:40,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 4481. [2021-06-05 00:45:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 4479 states have (on average 2.6816253628041973) internal successors, (12011), 4480 states have internal predecessors, (12011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 12011 transitions. [2021-06-05 00:45:40,501 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 12011 transitions. Word has length 94 [2021-06-05 00:45:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:40,501 INFO L482 AbstractCegarLoop]: Abstraction has 4481 states and 12011 transitions. [2021-06-05 00:45:40,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 12011 transitions. [2021-06-05 00:45:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:40,505 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:40,505 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:40,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 00:45:40,505 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1297759173, now seen corresponding path program 158 times [2021-06-05 00:45:40,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:40,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129995509] [2021-06-05 00:45:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:40,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:40,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129995509] [2021-06-05 00:45:40,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129995509] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:40,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:40,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:40,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880183942] [2021-06-05 00:45:40,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:40,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:40,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:40,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:40,951 INFO L87 Difference]: Start difference. First operand 4481 states and 12011 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:41,444 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-06-05 00:45:41,984 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:45:42,180 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:45:42,506 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:42,687 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:42,874 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:43,148 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:43,313 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:45:43,479 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:43,677 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:45:43,829 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:44,008 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:45:44,189 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:45:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:44,195 INFO L93 Difference]: Finished difference Result 8227 states and 21097 transitions. [2021-06-05 00:45:44,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:45:44,196 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:44,201 INFO L225 Difference]: With dead ends: 8227 [2021-06-05 00:45:44,201 INFO L226 Difference]: Without dead ends: 8227 [2021-06-05 00:45:44,201 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2923.0ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:45:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8227 states. [2021-06-05 00:45:44,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8227 to 4517. [2021-06-05 00:45:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 2.6841638981173865) internal successors, (12119), 4516 states have internal predecessors, (12119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 12119 transitions. [2021-06-05 00:45:44,265 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 12119 transitions. Word has length 94 [2021-06-05 00:45:44,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:44,265 INFO L482 AbstractCegarLoop]: Abstraction has 4517 states and 12119 transitions. [2021-06-05 00:45:44,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:44,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 12119 transitions. [2021-06-05 00:45:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:44,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:44,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:44,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 00:45:44,269 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:44,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1587864551, now seen corresponding path program 159 times [2021-06-05 00:45:44,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:44,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144020011] [2021-06-05 00:45:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:44,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:44,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144020011] [2021-06-05 00:45:44,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144020011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:44,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:44,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:44,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739229583] [2021-06-05 00:45:44,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:44,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:44,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:44,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:44,736 INFO L87 Difference]: Start difference. First operand 4517 states and 12119 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:45,648 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:45:45,855 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:45:46,069 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:45:46,297 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:45:46,684 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:46,887 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:47,186 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:45:47,376 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:45:47,572 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:45:47,762 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:45:47,955 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:47,962 INFO L93 Difference]: Finished difference Result 7915 states and 20513 transitions. [2021-06-05 00:45:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:45:47,962 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:47,969 INFO L225 Difference]: With dead ends: 7915 [2021-06-05 00:45:47,969 INFO L226 Difference]: Without dead ends: 7915 [2021-06-05 00:45:47,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2855.2ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:45:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2021-06-05 00:45:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 4409. [2021-06-05 00:45:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4407 states have (on average 2.6764238711141366) internal successors, (11795), 4408 states have internal predecessors, (11795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:48,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 11795 transitions. [2021-06-05 00:45:48,034 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 11795 transitions. Word has length 94 [2021-06-05 00:45:48,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:48,034 INFO L482 AbstractCegarLoop]: Abstraction has 4409 states and 11795 transitions. [2021-06-05 00:45:48,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 11795 transitions. [2021-06-05 00:45:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:48,038 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:48,038 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:48,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 00:45:48,038 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:48,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:48,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1276778039, now seen corresponding path program 160 times [2021-06-05 00:45:48,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:48,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958403149] [2021-06-05 00:45:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:48,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:48,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958403149] [2021-06-05 00:45:48,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958403149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:48,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:48,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:48,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044958468] [2021-06-05 00:45:48,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:48,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:48,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:48,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:48,513 INFO L87 Difference]: Start difference. First operand 4409 states and 11795 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:49,765 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:49,945 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:50,137 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:50,331 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:50,698 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:45:50,826 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:45:50,962 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:45:51,091 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 00:45:51,222 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:45:51,357 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:45:51,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:51,364 INFO L93 Difference]: Finished difference Result 7133 states and 18376 transitions. [2021-06-05 00:45:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:45:51,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:51,369 INFO L225 Difference]: With dead ends: 7133 [2021-06-05 00:45:51,369 INFO L226 Difference]: Without dead ends: 7133 [2021-06-05 00:45:51,369 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2519.4ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:45:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2021-06-05 00:45:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 4415. [2021-06-05 00:45:51,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4413 states have (on average 2.6761840018128256) internal successors, (11810), 4414 states have internal predecessors, (11810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 11810 transitions. [2021-06-05 00:45:51,425 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 11810 transitions. Word has length 94 [2021-06-05 00:45:51,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:51,425 INFO L482 AbstractCegarLoop]: Abstraction has 4415 states and 11810 transitions. [2021-06-05 00:45:51,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 11810 transitions. [2021-06-05 00:45:51,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:51,429 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:51,429 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:51,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 00:45:51,429 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:51,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:51,429 INFO L82 PathProgramCache]: Analyzing trace with hash -623118413, now seen corresponding path program 161 times [2021-06-05 00:45:51,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:51,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540935695] [2021-06-05 00:45:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:51,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:51,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540935695] [2021-06-05 00:45:51,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540935695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:51,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:51,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:51,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844381062] [2021-06-05 00:45:51,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:51,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:51,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:51,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:51,863 INFO L87 Difference]: Start difference. First operand 4415 states and 11810 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:52,799 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:45:53,188 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:53,374 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:53,562 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:53,755 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:54,043 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:45:54,189 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:45:54,335 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:45:54,491 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:45:54,625 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:45:54,770 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:45:54,920 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:45:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:54,926 INFO L93 Difference]: Finished difference Result 9367 states and 23954 transitions. [2021-06-05 00:45:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:45:54,926 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:54,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:54,934 INFO L225 Difference]: With dead ends: 9367 [2021-06-05 00:45:54,934 INFO L226 Difference]: Without dead ends: 9367 [2021-06-05 00:45:54,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2631.2ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:45:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2021-06-05 00:45:54,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 4511. [2021-06-05 00:45:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4511 states, 4509 states have (on average 2.683078287868707) internal successors, (12098), 4510 states have internal predecessors, (12098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4511 states to 4511 states and 12098 transitions. [2021-06-05 00:45:55,007 INFO L78 Accepts]: Start accepts. Automaton has 4511 states and 12098 transitions. Word has length 94 [2021-06-05 00:45:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:55,008 INFO L482 AbstractCegarLoop]: Abstraction has 4511 states and 12098 transitions. [2021-06-05 00:45:55,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4511 states and 12098 transitions. [2021-06-05 00:45:55,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:55,011 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:55,011 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:55,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 00:45:55,011 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:55,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:55,012 INFO L82 PathProgramCache]: Analyzing trace with hash -757938219, now seen corresponding path program 162 times [2021-06-05 00:45:55,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:55,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529265227] [2021-06-05 00:45:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:55,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:55,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529265227] [2021-06-05 00:45:55,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529265227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:55,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:55,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:55,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171455264] [2021-06-05 00:45:55,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:55,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:55,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:55,457 INFO L87 Difference]: Start difference. First operand 4511 states and 12098 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:56,392 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:45:56,609 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:45:56,984 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:57,174 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:45:57,372 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:45:57,677 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:45:57,839 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:45:58,007 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:45:58,212 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:45:58,365 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:45:58,531 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:45:58,699 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:45:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:58,705 INFO L93 Difference]: Finished difference Result 10419 states and 26527 transitions. [2021-06-05 00:45:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:45:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:45:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:58,712 INFO L225 Difference]: With dead ends: 10419 [2021-06-05 00:45:58,712 INFO L226 Difference]: Without dead ends: 10419 [2021-06-05 00:45:58,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2833.8ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:45:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10419 states. [2021-06-05 00:45:58,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10419 to 4547. [2021-06-05 00:45:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4545 states have (on average 2.6855885588558857) internal successors, (12206), 4546 states have internal predecessors, (12206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 12206 transitions. [2021-06-05 00:45:58,785 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 12206 transitions. Word has length 94 [2021-06-05 00:45:58,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:58,785 INFO L482 AbstractCegarLoop]: Abstraction has 4547 states and 12206 transitions. [2021-06-05 00:45:58,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 12206 transitions. [2021-06-05 00:45:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:45:58,788 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:58,789 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:58,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 00:45:58,789 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:45:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:58,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1048043597, now seen corresponding path program 163 times [2021-06-05 00:45:58,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:58,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128971341] [2021-06-05 00:45:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:59,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:59,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128971341] [2021-06-05 00:45:59,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128971341] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:59,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:59,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:45:59,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879237400] [2021-06-05 00:45:59,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:45:59,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:59,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:45:59,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:45:59,242 INFO L87 Difference]: Start difference. First operand 4547 states and 12206 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:00,151 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:00,364 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:46:00,558 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:46:00,757 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:46:01,102 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:46:01,292 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:01,610 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:46:01,797 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:46:01,993 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:46:02,184 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:46:02,375 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:02,381 INFO L93 Difference]: Finished difference Result 10107 states and 25943 transitions. [2021-06-05 00:46:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:46:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:02,390 INFO L225 Difference]: With dead ends: 10107 [2021-06-05 00:46:02,390 INFO L226 Difference]: Without dead ends: 10107 [2021-06-05 00:46:02,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2803.5ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:46:02,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2021-06-05 00:46:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 4439. [2021-06-05 00:46:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4437 states have (on average 2.677935542032905) internal successors, (11882), 4438 states have internal predecessors, (11882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 11882 transitions. [2021-06-05 00:46:02,469 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 11882 transitions. Word has length 94 [2021-06-05 00:46:02,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:02,470 INFO L482 AbstractCegarLoop]: Abstraction has 4439 states and 11882 transitions. [2021-06-05 00:46:02,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 11882 transitions. [2021-06-05 00:46:02,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:02,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:02,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:02,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 00:46:02,474 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:02,474 INFO L82 PathProgramCache]: Analyzing trace with hash 577631, now seen corresponding path program 164 times [2021-06-05 00:46:02,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:02,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263671288] [2021-06-05 00:46:02,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:02,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:02,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263671288] [2021-06-05 00:46:02,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263671288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:02,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:02,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:02,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810304416] [2021-06-05 00:46:02,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:02,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:02,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:02,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:02,934 INFO L87 Difference]: Start difference. First operand 4439 states and 11882 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:04,126 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:46:04,302 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:04,495 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:04,696 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:04,966 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:46:05,103 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:46:05,237 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:46:05,379 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:46:05,501 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 00:46:05,636 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:46:05,774 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:46:05,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:05,783 INFO L93 Difference]: Finished difference Result 8923 states and 22759 transitions. [2021-06-05 00:46:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:05,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:05,789 INFO L225 Difference]: With dead ends: 8923 [2021-06-05 00:46:05,789 INFO L226 Difference]: Without dead ends: 8923 [2021-06-05 00:46:05,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2552.3ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8923 states. [2021-06-05 00:46:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8923 to 4443. [2021-06-05 00:46:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 4441 states have (on average 2.677775275838775) internal successors, (11892), 4442 states have internal predecessors, (11892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 11892 transitions. [2021-06-05 00:46:05,852 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 11892 transitions. Word has length 94 [2021-06-05 00:46:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:05,852 INFO L482 AbstractCegarLoop]: Abstraction has 4443 states and 11892 transitions. [2021-06-05 00:46:05,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 11892 transitions. [2021-06-05 00:46:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:05,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:05,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:05,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 00:46:05,856 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash -59090953, now seen corresponding path program 165 times [2021-06-05 00:46:05,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:05,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536466889] [2021-06-05 00:46:05,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:06,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:06,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536466889] [2021-06-05 00:46:06,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536466889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:06,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:06,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:06,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417415628] [2021-06-05 00:46:06,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:06,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:06,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:06,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:06,290 INFO L87 Difference]: Start difference. First operand 4443 states and 11892 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:07,515 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:07,671 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:07,867 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:08,070 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:08,477 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:46:08,609 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:46:08,821 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:46:09,078 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:46:09,217 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:46:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:09,226 INFO L93 Difference]: Finished difference Result 9085 states and 23074 transitions. [2021-06-05 00:46:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:09,234 INFO L225 Difference]: With dead ends: 9085 [2021-06-05 00:46:09,234 INFO L226 Difference]: Without dead ends: 9085 [2021-06-05 00:46:09,234 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2605.8ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9085 states. [2021-06-05 00:46:09,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9085 to 4445. [2021-06-05 00:46:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4443 states have (on average 2.677695250956561) internal successors, (11897), 4444 states have internal predecessors, (11897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 11897 transitions. [2021-06-05 00:46:09,306 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 11897 transitions. Word has length 94 [2021-06-05 00:46:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:09,306 INFO L482 AbstractCegarLoop]: Abstraction has 4445 states and 11897 transitions. [2021-06-05 00:46:09,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 11897 transitions. [2021-06-05 00:46:09,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:09,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:09,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:09,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 00:46:09,310 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:09,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1621922793, now seen corresponding path program 166 times [2021-06-05 00:46:09,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:09,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819939982] [2021-06-05 00:46:09,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:09,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:09,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819939982] [2021-06-05 00:46:09,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819939982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:09,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:09,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:09,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958831356] [2021-06-05 00:46:09,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:09,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:09,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:09,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:09,774 INFO L87 Difference]: Start difference. First operand 4445 states and 11897 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:11,029 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:11,196 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:46:11,384 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:46:11,556 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:11,755 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:46:12,067 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:46:12,204 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:46:12,339 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:46:12,479 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:46:12,730 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:46:12,868 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:46:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:12,875 INFO L93 Difference]: Finished difference Result 8883 states and 22670 transitions. [2021-06-05 00:46:12,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:46:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:12,880 INFO L225 Difference]: With dead ends: 8883 [2021-06-05 00:46:12,881 INFO L226 Difference]: Without dead ends: 8883 [2021-06-05 00:46:12,881 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2737.8ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:46:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2021-06-05 00:46:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 4439. [2021-06-05 00:46:12,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4437 states have (on average 2.677935542032905) internal successors, (11882), 4438 states have internal predecessors, (11882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 11882 transitions. [2021-06-05 00:46:12,945 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 11882 transitions. Word has length 94 [2021-06-05 00:46:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:12,945 INFO L482 AbstractCegarLoop]: Abstraction has 4439 states and 11882 transitions. [2021-06-05 00:46:12,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 11882 transitions. [2021-06-05 00:46:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:12,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:12,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:12,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 00:46:12,948 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:12,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1418289783, now seen corresponding path program 167 times [2021-06-05 00:46:12,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:12,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618287260] [2021-06-05 00:46:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:13,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:13,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618287260] [2021-06-05 00:46:13,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618287260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:13,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:13,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:13,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86398269] [2021-06-05 00:46:13,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:13,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:13,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:13,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:13,383 INFO L87 Difference]: Start difference. First operand 4439 states and 11882 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:14,366 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:14,543 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:46:14,903 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:46:15,090 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:46:15,292 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:15,595 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:46:15,764 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:46:15,933 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:46:16,109 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:46:16,299 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:46:16,466 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:46:16,643 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:46:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:16,650 INFO L93 Difference]: Finished difference Result 9207 states and 23512 transitions. [2021-06-05 00:46:16,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:16,650 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:16,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:16,659 INFO L225 Difference]: With dead ends: 9207 [2021-06-05 00:46:16,659 INFO L226 Difference]: Without dead ends: 9207 [2021-06-05 00:46:16,659 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2867.5ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9207 states. [2021-06-05 00:46:16,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9207 to 4487. [2021-06-05 00:46:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4487 states, 4485 states have (on average 2.681382385730212) internal successors, (12026), 4486 states have internal predecessors, (12026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 12026 transitions. [2021-06-05 00:46:16,742 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 12026 transitions. Word has length 94 [2021-06-05 00:46:16,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:16,743 INFO L482 AbstractCegarLoop]: Abstraction has 4487 states and 12026 transitions. [2021-06-05 00:46:16,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 12026 transitions. [2021-06-05 00:46:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:16,746 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:16,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:16,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 00:46:16,747 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:16,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:16,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1128184405, now seen corresponding path program 168 times [2021-06-05 00:46:16,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:16,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393996147] [2021-06-05 00:46:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:17,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:17,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:17,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393996147] [2021-06-05 00:46:17,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393996147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:17,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:17,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:17,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126337978] [2021-06-05 00:46:17,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:17,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:17,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:17,200 INFO L87 Difference]: Start difference. First operand 4487 states and 12026 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:18,179 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:18,350 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:46:18,579 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:46:18,787 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:46:19,207 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:46:19,403 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:19,725 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:46:19,912 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:46:20,111 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:46:20,301 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:46:20,495 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:20,502 INFO L93 Difference]: Finished difference Result 9881 states and 25308 transitions. [2021-06-05 00:46:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:46:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:20,509 INFO L225 Difference]: With dead ends: 9881 [2021-06-05 00:46:20,509 INFO L226 Difference]: Without dead ends: 9881 [2021-06-05 00:46:20,509 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2912.9ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:46:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9881 states. [2021-06-05 00:46:20,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9881 to 4451. [2021-06-05 00:46:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4451 states, 4449 states have (on average 2.6788042256686895) internal successors, (11918), 4450 states have internal predecessors, (11918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4451 states to 4451 states and 11918 transitions. [2021-06-05 00:46:20,584 INFO L78 Accepts]: Start accepts. Automaton has 4451 states and 11918 transitions. Word has length 94 [2021-06-05 00:46:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:20,584 INFO L482 AbstractCegarLoop]: Abstraction has 4451 states and 11918 transitions. [2021-06-05 00:46:20,584 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4451 states and 11918 transitions. [2021-06-05 00:46:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:20,588 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:20,588 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:20,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 00:46:20,588 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:20,588 INFO L82 PathProgramCache]: Analyzing trace with hash -769031747, now seen corresponding path program 169 times [2021-06-05 00:46:20,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:20,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292255056] [2021-06-05 00:46:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:21,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:21,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292255056] [2021-06-05 00:46:21,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292255056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:21,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:21,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:21,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503858191] [2021-06-05 00:46:21,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:21,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:21,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:21,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:21,051 INFO L87 Difference]: Start difference. First operand 4451 states and 11918 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:21,717 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-06-05 00:46:22,047 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:22,381 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:22,541 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:22,736 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:22,935 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:23,225 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:46:23,378 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:46:23,530 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:46:23,693 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:46:23,833 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:24,039 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:46:24,196 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:46:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:24,206 INFO L93 Difference]: Finished difference Result 8831 states and 22520 transitions. [2021-06-05 00:46:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:24,211 INFO L225 Difference]: With dead ends: 8831 [2021-06-05 00:46:24,211 INFO L226 Difference]: Without dead ends: 8831 [2021-06-05 00:46:24,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2811.3ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:24,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2021-06-05 00:46:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 4453. [2021-06-05 00:46:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 4451 states have (on average 2.6787238822736463) internal successors, (11923), 4452 states have internal predecessors, (11923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 11923 transitions. [2021-06-05 00:46:24,275 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 11923 transitions. Word has length 94 [2021-06-05 00:46:24,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:24,276 INFO L482 AbstractCegarLoop]: Abstraction has 4453 states and 11923 transitions. [2021-06-05 00:46:24,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:24,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 11923 transitions. [2021-06-05 00:46:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:24,279 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:24,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:24,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 00:46:24,279 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:24,280 INFO L82 PathProgramCache]: Analyzing trace with hash 999504007, now seen corresponding path program 170 times [2021-06-05 00:46:24,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:24,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855161174] [2021-06-05 00:46:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:24,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:24,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855161174] [2021-06-05 00:46:24,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855161174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:24,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:24,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:24,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634444410] [2021-06-05 00:46:24,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:24,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:24,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:24,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:24,732 INFO L87 Difference]: Start difference. First operand 4453 states and 11923 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:25,699 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:26,029 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:26,214 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:46:26,427 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:46:26,596 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:26,793 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:46:27,116 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:46:27,277 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:46:27,437 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:46:27,598 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:46:27,737 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:27,888 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:46:28,047 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:46:28,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:28,053 INFO L93 Difference]: Finished difference Result 8813 states and 22482 transitions. [2021-06-05 00:46:28,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:46:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:28,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:28,060 INFO L225 Difference]: With dead ends: 8813 [2021-06-05 00:46:28,060 INFO L226 Difference]: Without dead ends: 8813 [2021-06-05 00:46:28,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2917.8ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:46:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8813 states. [2021-06-05 00:46:28,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8813 to 4451. [2021-06-05 00:46:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4451 states, 4449 states have (on average 2.6788042256686895) internal successors, (11918), 4450 states have internal predecessors, (11918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4451 states to 4451 states and 11918 transitions. [2021-06-05 00:46:28,130 INFO L78 Accepts]: Start accepts. Automaton has 4451 states and 11918 transitions. Word has length 94 [2021-06-05 00:46:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:28,130 INFO L482 AbstractCegarLoop]: Abstraction has 4451 states and 11918 transitions. [2021-06-05 00:46:28,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4451 states and 11918 transitions. [2021-06-05 00:46:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:28,134 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:28,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:28,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 00:46:28,134 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1674691015, now seen corresponding path program 171 times [2021-06-05 00:46:28,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:28,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521079137] [2021-06-05 00:46:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:28,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:28,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:28,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521079137] [2021-06-05 00:46:28,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521079137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:28,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:28,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:28,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142876268] [2021-06-05 00:46:28,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:28,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:28,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:28,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:28,629 INFO L87 Difference]: Start difference. First operand 4451 states and 11918 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:29,578 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:29,754 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:46:29,944 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-06-05 00:46:30,105 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:46:30,305 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-06-05 00:46:30,693 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-06-05 00:46:30,857 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:31,062 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-06-05 00:46:31,390 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 00:46:31,573 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-05 00:46:31,744 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:46:31,932 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-06-05 00:46:32,115 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:46:32,313 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-06-05 00:46:32,488 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 00:46:32,675 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:46:32,850 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:33,033 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:46:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:33,043 INFO L93 Difference]: Finished difference Result 9186 states and 23511 transitions. [2021-06-05 00:46:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:46:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:33,049 INFO L225 Difference]: With dead ends: 9186 [2021-06-05 00:46:33,050 INFO L226 Difference]: Without dead ends: 9186 [2021-06-05 00:46:33,050 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4027.8ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:46:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2021-06-05 00:46:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 4463. [2021-06-05 00:46:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4463 states, 4461 states have (on average 2.679668235821565) internal successors, (11954), 4462 states have internal predecessors, (11954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 11954 transitions. [2021-06-05 00:46:33,118 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 11954 transitions. Word has length 94 [2021-06-05 00:46:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:33,119 INFO L482 AbstractCegarLoop]: Abstraction has 4463 states and 11954 transitions. [2021-06-05 00:46:33,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 11954 transitions. [2021-06-05 00:46:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:33,122 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:33,122 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:33,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 00:46:33,122 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:33,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1582456383, now seen corresponding path program 172 times [2021-06-05 00:46:33,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:33,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890754276] [2021-06-05 00:46:33,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:33,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:33,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890754276] [2021-06-05 00:46:33,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890754276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:33,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:33,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:33,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435745530] [2021-06-05 00:46:33,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:33,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:33,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:33,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:33,612 INFO L87 Difference]: Start difference. First operand 4463 states and 11954 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:34,577 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:34,753 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-06-05 00:46:34,940 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 00:46:35,297 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:46:35,495 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:46:35,697 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:35,904 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:46:36,247 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 00:46:36,423 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 00:46:36,603 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 00:46:36,766 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:46:36,938 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 00:46:37,129 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:37,135 INFO L93 Difference]: Finished difference Result 8355 states and 21430 transitions. [2021-06-05 00:46:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:46:37,136 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:37,143 INFO L225 Difference]: With dead ends: 8355 [2021-06-05 00:46:37,143 INFO L226 Difference]: Without dead ends: 8355 [2021-06-05 00:46:37,143 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3122.4ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:46:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8355 states. [2021-06-05 00:46:37,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8355 to 4415. [2021-06-05 00:46:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4413 states have (on average 2.6761840018128256) internal successors, (11810), 4414 states have internal predecessors, (11810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 11810 transitions. [2021-06-05 00:46:37,209 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 11810 transitions. Word has length 94 [2021-06-05 00:46:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:37,209 INFO L482 AbstractCegarLoop]: Abstraction has 4415 states and 11810 transitions. [2021-06-05 00:46:37,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 11810 transitions. [2021-06-05 00:46:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:37,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:37,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:37,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 00:46:37,214 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:37,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:37,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1663508767, now seen corresponding path program 173 times [2021-06-05 00:46:37,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:37,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528840150] [2021-06-05 00:46:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:37,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:37,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528840150] [2021-06-05 00:46:37,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528840150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:37,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:37,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:37,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258040853] [2021-06-05 00:46:37,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:37,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:37,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:37,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:37,664 INFO L87 Difference]: Start difference. First operand 4415 states and 11810 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:38,922 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:46:39,119 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:39,316 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:39,516 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:40,464 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:46:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:40,471 INFO L93 Difference]: Finished difference Result 7603 states and 19382 transitions. [2021-06-05 00:46:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:40,471 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:40,476 INFO L225 Difference]: With dead ends: 7603 [2021-06-05 00:46:40,476 INFO L226 Difference]: Without dead ends: 7603 [2021-06-05 00:46:40,477 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2423.0ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2021-06-05 00:46:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 4417. [2021-06-05 00:46:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4415 states have (on average 2.676104190260476) internal successors, (11815), 4416 states have internal predecessors, (11815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 11815 transitions. [2021-06-05 00:46:40,535 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 11815 transitions. Word has length 94 [2021-06-05 00:46:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:40,535 INFO L482 AbstractCegarLoop]: Abstraction has 4417 states and 11815 transitions. [2021-06-05 00:46:40,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 11815 transitions. [2021-06-05 00:46:40,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:40,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:40,539 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:40,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 00:46:40,539 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:40,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:40,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1268018171, now seen corresponding path program 174 times [2021-06-05 00:46:40,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:40,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801206116] [2021-06-05 00:46:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:40,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:40,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801206116] [2021-06-05 00:46:40,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801206116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:40,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:40,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:40,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993813500] [2021-06-05 00:46:40,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:40,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:40,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:40,974 INFO L87 Difference]: Start difference. First operand 4417 states and 11815 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,129 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:46:42,321 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:42,543 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:42,763 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:43,711 INFO L93 Difference]: Finished difference Result 7703 states and 19531 transitions. [2021-06-05 00:46:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:43,717 INFO L225 Difference]: With dead ends: 7703 [2021-06-05 00:46:43,717 INFO L226 Difference]: Without dead ends: 7703 [2021-06-05 00:46:43,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2432.5ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:43,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7703 states. [2021-06-05 00:46:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7703 to 4421. [2021-06-05 00:46:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4421 states, 4419 states have (on average 2.6759447838877573) internal successors, (11825), 4420 states have internal predecessors, (11825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4421 states to 4421 states and 11825 transitions. [2021-06-05 00:46:43,783 INFO L78 Accepts]: Start accepts. Automaton has 4421 states and 11825 transitions. Word has length 94 [2021-06-05 00:46:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:43,783 INFO L482 AbstractCegarLoop]: Abstraction has 4421 states and 11825 transitions. [2021-06-05 00:46:43,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4421 states and 11825 transitions. [2021-06-05 00:46:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:43,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:43,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:43,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 00:46:43,787 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2125568281, now seen corresponding path program 175 times [2021-06-05 00:46:43,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:43,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824037764] [2021-06-05 00:46:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:44,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:44,223 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824037764] [2021-06-05 00:46:44,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824037764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:44,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:44,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:44,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404706097] [2021-06-05 00:46:44,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:44,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:44,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:44,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:44,224 INFO L87 Difference]: Start difference. First operand 4421 states and 11825 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:45,410 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:45,576 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:46:45,773 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:46:45,972 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:46:46,466 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 00:46:46,597 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-06-05 00:46:46,841 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 00:46:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:46,979 INFO L93 Difference]: Finished difference Result 7667 states and 19447 transitions. [2021-06-05 00:46:46,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:46,979 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:46,986 INFO L225 Difference]: With dead ends: 7667 [2021-06-05 00:46:46,986 INFO L226 Difference]: Without dead ends: 7667 [2021-06-05 00:46:46,986 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2453.1ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:46,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7667 states. [2021-06-05 00:46:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7667 to 4423. [2021-06-05 00:46:47,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4421 states have (on average 2.675865188871296) internal successors, (11830), 4422 states have internal predecessors, (11830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:47,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 11830 transitions. [2021-06-05 00:46:47,054 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 11830 transitions. Word has length 94 [2021-06-05 00:46:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:47,054 INFO L482 AbstractCegarLoop]: Abstraction has 4423 states and 11830 transitions. [2021-06-05 00:46:47,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 11830 transitions. [2021-06-05 00:46:47,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:47,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:47,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:47,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 00:46:47,058 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:47,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:47,058 INFO L82 PathProgramCache]: Analyzing trace with hash -488385269, now seen corresponding path program 176 times [2021-06-05 00:46:47,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:47,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977009297] [2021-06-05 00:46:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:47,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:47,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977009297] [2021-06-05 00:46:47,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977009297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:47,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:47,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:47,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841758183] [2021-06-05 00:46:47,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:47,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:47,601 INFO L87 Difference]: Start difference. First operand 4423 states and 11830 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:48,692 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 00:46:48,866 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:49,037 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:46:49,227 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:46:49,396 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:46:49,599 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:46:50,001 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 00:46:50,597 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-06-05 00:46:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:50,604 INFO L93 Difference]: Finished difference Result 7465 states and 19043 transitions. [2021-06-05 00:46:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:46:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:50,610 INFO L225 Difference]: With dead ends: 7465 [2021-06-05 00:46:50,610 INFO L226 Difference]: Without dead ends: 7465 [2021-06-05 00:46:50,610 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2786.2ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:46:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7465 states. [2021-06-05 00:46:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7465 to 4417. [2021-06-05 00:46:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4415 states have (on average 2.676104190260476) internal successors, (11815), 4416 states have internal predecessors, (11815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 11815 transitions. [2021-06-05 00:46:50,674 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 11815 transitions. Word has length 94 [2021-06-05 00:46:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:50,674 INFO L482 AbstractCegarLoop]: Abstraction has 4417 states and 11815 transitions. [2021-06-05 00:46:50,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 11815 transitions. [2021-06-05 00:46:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:50,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:50,678 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:50,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 00:46:50,678 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:50,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1406513579, now seen corresponding path program 177 times [2021-06-05 00:46:50,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:50,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520603882] [2021-06-05 00:46:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:51,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:51,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520603882] [2021-06-05 00:46:51,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520603882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:51,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:51,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:51,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477829405] [2021-06-05 00:46:51,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:51,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:51,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:51,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:51,154 INFO L87 Difference]: Start difference. First operand 4417 states and 11815 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:52,103 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:52,464 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:52,634 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:46:52,820 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:46:53,010 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:53,277 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-06-05 00:46:53,423 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-06-05 00:46:53,569 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-06-05 00:46:53,723 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-06-05 00:46:53,857 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:46:54,003 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-06-05 00:46:54,156 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-06-05 00:46:54,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:54,162 INFO L93 Difference]: Finished difference Result 9791 states and 25118 transitions. [2021-06-05 00:46:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:54,163 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:54,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:54,170 INFO L225 Difference]: With dead ends: 9791 [2021-06-05 00:46:54,170 INFO L226 Difference]: Without dead ends: 9791 [2021-06-05 00:46:54,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2705.4ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9791 states. [2021-06-05 00:46:54,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9791 to 4561. [2021-06-05 00:46:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4561 states, 4559 states have (on average 2.68633472252687) internal successors, (12247), 4560 states have internal predecessors, (12247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 12247 transitions. [2021-06-05 00:46:54,245 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 12247 transitions. Word has length 94 [2021-06-05 00:46:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:54,246 INFO L482 AbstractCegarLoop]: Abstraction has 4561 states and 12247 transitions. [2021-06-05 00:46:54,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:54,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 12247 transitions. [2021-06-05 00:46:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:54,249 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:54,249 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:54,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 00:46:54,249 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:54,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1541333385, now seen corresponding path program 178 times [2021-06-05 00:46:54,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:54,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617628369] [2021-06-05 00:46:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:54,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:54,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617628369] [2021-06-05 00:46:54,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617628369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:54,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:54,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:54,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477003365] [2021-06-05 00:46:54,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:54,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:54,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:54,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:54,701 INFO L87 Difference]: Start difference. First operand 4561 states and 12247 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:55,651 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:55,860 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:46:56,208 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:46:56,393 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:46:56,581 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:46:56,882 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-06-05 00:46:57,048 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-06-05 00:46:57,240 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-06-05 00:46:57,413 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-05 00:46:57,567 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-06-05 00:46:57,735 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-05 00:46:57,906 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-06-05 00:46:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:57,913 INFO L93 Difference]: Finished difference Result 10843 states and 27691 transitions. [2021-06-05 00:46:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:46:57,913 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:46:57,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:57,920 INFO L225 Difference]: With dead ends: 10843 [2021-06-05 00:46:57,920 INFO L226 Difference]: Without dead ends: 10843 [2021-06-05 00:46:57,920 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2827.1ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:46:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2021-06-05 00:46:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 4597. [2021-06-05 00:46:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4597 states, 4595 states have (on average 2.688792165397171) internal successors, (12355), 4596 states have internal predecessors, (12355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 12355 transitions. [2021-06-05 00:46:57,995 INFO L78 Accepts]: Start accepts. Automaton has 4597 states and 12355 transitions. Word has length 94 [2021-06-05 00:46:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:57,996 INFO L482 AbstractCegarLoop]: Abstraction has 4597 states and 12355 transitions. [2021-06-05 00:46:57,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4597 states and 12355 transitions. [2021-06-05 00:46:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:46:57,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:57,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:57,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 00:46:58,000 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:46:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:58,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1831438763, now seen corresponding path program 179 times [2021-06-05 00:46:58,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:58,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074500645] [2021-06-05 00:46:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:58,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:58,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074500645] [2021-06-05 00:46:58,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074500645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:58,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:58,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:46:58,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348784475] [2021-06-05 00:46:58,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:46:58,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:58,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:46:58,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:46:58,453 INFO L87 Difference]: Start difference. First operand 4597 states and 12355 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:59,418 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:46:59,626 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:46:59,825 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-06-05 00:47:00,029 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-06-05 00:47:00,389 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-06-05 00:47:00,578 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:47:00,892 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-05 00:47:01,078 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-06-05 00:47:01,274 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-05 00:47:01,462 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-06-05 00:47:01,653 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-05 00:47:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:01,660 INFO L93 Difference]: Finished difference Result 10531 states and 27107 transitions. [2021-06-05 00:47:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 00:47:01,660 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:47:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:01,670 INFO L225 Difference]: With dead ends: 10531 [2021-06-05 00:47:01,670 INFO L226 Difference]: Without dead ends: 10531 [2021-06-05 00:47:01,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2789.8ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:47:01,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2021-06-05 00:47:01,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 4489. [2021-06-05 00:47:01,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 4487 states have (on average 2.6813015377757967) internal successors, (12031), 4488 states have internal predecessors, (12031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 12031 transitions. [2021-06-05 00:47:01,752 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 12031 transitions. Word has length 94 [2021-06-05 00:47:01,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:01,752 INFO L482 AbstractCegarLoop]: Abstraction has 4489 states and 12031 transitions. [2021-06-05 00:47:01,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:01,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 12031 transitions. [2021-06-05 00:47:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:47:01,756 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:01,756 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:01,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 00:47:01,756 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:47:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:01,756 INFO L82 PathProgramCache]: Analyzing trace with hash -782817535, now seen corresponding path program 180 times [2021-06-05 00:47:01,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:01,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631054164] [2021-06-05 00:47:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:02,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:02,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631054164] [2021-06-05 00:47:02,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631054164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:02,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:02,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:47:02,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21468635] [2021-06-05 00:47:02,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:47:02,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:02,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:47:02,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:47:02,188 INFO L87 Difference]: Start difference. First operand 4489 states and 12031 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:03,459 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-06-05 00:47:03,639 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:47:03,834 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:47:04,054 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:47:04,471 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:47:04,604 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:47:04,745 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:47:04,996 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:47:05,138 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:47:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:05,148 INFO L93 Difference]: Finished difference Result 10309 states and 26306 transitions. [2021-06-05 00:47:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:47:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:47:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:05,156 INFO L225 Difference]: With dead ends: 10309 [2021-06-05 00:47:05,156 INFO L226 Difference]: Without dead ends: 10309 [2021-06-05 00:47:05,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2555.7ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:47:05,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10309 states. [2021-06-05 00:47:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10309 to 4493. [2021-06-05 00:47:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 4491 states have (on average 2.6811400578935647) internal successors, (12041), 4492 states have internal predecessors, (12041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 12041 transitions. [2021-06-05 00:47:05,232 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 12041 transitions. Word has length 94 [2021-06-05 00:47:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:05,233 INFO L482 AbstractCegarLoop]: Abstraction has 4493 states and 12041 transitions. [2021-06-05 00:47:05,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 12041 transitions. [2021-06-05 00:47:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:47:05,236 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:05,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:05,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 00:47:05,236 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:47:05,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:05,237 INFO L82 PathProgramCache]: Analyzing trace with hash -842486119, now seen corresponding path program 181 times [2021-06-05 00:47:05,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:05,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991614047] [2021-06-05 00:47:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:05,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:05,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991614047] [2021-06-05 00:47:05,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991614047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:05,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:05,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:47:05,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105834145] [2021-06-05 00:47:05,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:47:05,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:05,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:47:05,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:47:05,698 INFO L87 Difference]: Start difference. First operand 4493 states and 12041 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:06,974 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:47:07,151 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 00:47:07,348 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-06-05 00:47:07,563 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-06-05 00:47:07,845 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:47:07,992 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:47:08,136 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:47:08,283 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:47:08,539 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:47:08,681 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:47:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:08,690 INFO L93 Difference]: Finished difference Result 10471 states and 26621 transitions. [2021-06-05 00:47:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 00:47:08,691 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:47:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:08,700 INFO L225 Difference]: With dead ends: 10471 [2021-06-05 00:47:08,700 INFO L226 Difference]: Without dead ends: 10471 [2021-06-05 00:47:08,701 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2669.7ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 00:47:08,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2021-06-05 00:47:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 4495. [2021-06-05 00:47:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4495 states, 4493 states have (on average 2.6810594257734253) internal successors, (12046), 4494 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 12046 transitions. [2021-06-05 00:47:08,790 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 12046 transitions. Word has length 94 [2021-06-05 00:47:08,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:08,790 INFO L482 AbstractCegarLoop]: Abstraction has 4495 states and 12046 transitions. [2021-06-05 00:47:08,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 12046 transitions. [2021-06-05 00:47:08,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:47:08,793 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:08,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:08,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 00:47:08,794 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:47:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 838527627, now seen corresponding path program 182 times [2021-06-05 00:47:08,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:08,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698173052] [2021-06-05 00:47:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:09,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:09,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698173052] [2021-06-05 00:47:09,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698173052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:09,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:09,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:47:09,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546522877] [2021-06-05 00:47:09,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:47:09,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:09,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:47:09,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:47:09,245 INFO L87 Difference]: Start difference. First operand 4495 states and 12046 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:10,483 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-06-05 00:47:10,648 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 00:47:10,833 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 00:47:11,015 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 00:47:11,208 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-06-05 00:47:11,512 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 00:47:11,652 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 00:47:11,802 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:47:11,956 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-06-05 00:47:12,206 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 00:47:12,343 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 00:47:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:12,350 INFO L93 Difference]: Finished difference Result 10269 states and 26217 transitions. [2021-06-05 00:47:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:47:12,350 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-06-05 00:47:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:12,358 INFO L225 Difference]: With dead ends: 10269 [2021-06-05 00:47:12,358 INFO L226 Difference]: Without dead ends: 10269 [2021-06-05 00:47:12,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2753.1ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 00:47:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10269 states. [2021-06-05 00:47:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10269 to 4489. [2021-06-05 00:47:12,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4489 states, 4487 states have (on average 2.6813015377757967) internal successors, (12031), 4488 states have internal predecessors, (12031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4489 states to 4489 states and 12031 transitions. [2021-06-05 00:47:12,433 INFO L78 Accepts]: Start accepts. Automaton has 4489 states and 12031 transitions. Word has length 94 [2021-06-05 00:47:12,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:12,433 INFO L482 AbstractCegarLoop]: Abstraction has 4489 states and 12031 transitions. [2021-06-05 00:47:12,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4489 states and 12031 transitions. [2021-06-05 00:47:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-06-05 00:47:12,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:12,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:12,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 00:47:12,437 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:47:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:12,437 INFO L82 PathProgramCache]: Analyzing trace with hash 634894617, now seen corresponding path program 183 times [2021-06-05 00:47:12,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:12,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755319231] [2021-06-05 00:47:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:12,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:12,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755319231] [2021-06-05 00:47:12,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755319231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:12,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:12,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 00:47:12,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846612095] [2021-06-05 00:47:12,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 00:47:12,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:12,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 00:47:12,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-05 00:47:12,870 INFO L87 Difference]: Start difference. First operand 4489 states and 12031 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:13,865 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-06-05 00:47:14,030 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 00:47:14,367 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 Received shutdown request... [2021-06-05 00:47:14,465 WARN L222 SmtUtils]: Removed 11 from assertion stack [2021-06-05 00:47:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 00:47:14,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 00:47:14,465 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 00:47:14,466 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:47:14,467 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 00:47:14,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:47:14 BasicIcfg [2021-06-05 00:47:14,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:47:14,468 INFO L168 Benchmark]: Toolchain (without parser) took 751808.16 ms. Allocated memory was 348.1 MB in the beginning and 1.2 GB in the end (delta: 868.2 MB). Free memory was 309.3 MB in the beginning and 829.7 MB in the end (delta: -520.4 MB). Peak memory consumption was 349.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 348.1 MB. Free memory was 329.2 MB in the beginning and 329.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.58 ms. Allocated memory is still 348.1 MB. Free memory was 309.1 MB in the beginning and 301.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 348.1 MB. Free memory was 301.8 MB in the beginning and 298.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: Boogie Preprocessor took 25.88 ms. Allocated memory is still 348.1 MB. Free memory was 298.3 MB in the beginning and 295.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: RCFGBuilder took 520.25 ms. Allocated memory is still 348.1 MB. Free memory was 295.5 MB in the beginning and 248.3 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,468 INFO L168 Benchmark]: TraceAbstraction took 750566.98 ms. Allocated memory was 348.1 MB in the beginning and 1.2 GB in the end (delta: 868.2 MB). Free memory was 248.3 MB in the beginning and 829.7 MB in the end (delta: -581.4 MB). Peak memory consumption was 285.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:14,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 348.1 MB. Free memory was 329.2 MB in the beginning and 329.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 650.58 ms. Allocated memory is still 348.1 MB. Free memory was 309.1 MB in the beginning and 301.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 348.1 MB. Free memory was 301.8 MB in the beginning and 298.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.88 ms. Allocated memory is still 348.1 MB. Free memory was 298.3 MB in the beginning and 295.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 520.25 ms. Allocated memory is still 348.1 MB. Free memory was 295.5 MB in the beginning and 248.3 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 750566.98 ms. Allocated memory was 348.1 MB in the beginning and 1.2 GB in the end (delta: 868.2 MB). Free memory was 248.3 MB in the beginning and 829.7 MB in the end (delta: -581.4 MB). Peak memory consumption was 285.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - TimeoutResultAtElement [Line: 1711]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - TimeoutResultAtElement [Line: 1712]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4489states) and FLOYD_HOARE automaton (currently 16 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 85 for 64ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 148 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 750456.8ms, OverallIterations: 189, TraceHistogramMax: 1, EmptinessCheckTime: 701.6ms, AutomataDifference: 645410.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 187.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55225 SDtfs, 188773 SDslu, 557289 SDs, 0 SdLazy, 249241 SolverSat, 12065 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111247.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9435 GetRequests, 571 SyntacticMatches, 196 SemanticMatches, 8667 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49496 ImplicationChecksByTransitivity, 571349.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5115occurred in iteration=0, InterpolantAutomatonStates: 5365, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12498.2ms AutomataMinimizationTime, 188 MinimizatonAttempts, 727083 StatesRemovedByMinimization, 187 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 259.4ms SsaConstructionTime, 2005.3ms SatisfiabilityAnalysisTime, 88039.1ms InterpolantComputationTime, 17652 NumberOfCodeBlocks, 17652 NumberOfCodeBlocksAsserted, 189 NumberOfCheckSat, 17463 ConstructedInterpolants, 0 QuantifiedInterpolants, 273382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 189 InterpolantComputations, 189 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown