/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-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:01:10,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:01:10,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:01:10,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:01:10,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:01:10,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:01:10,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:01:10,814 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 20:01:10,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:01:10,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:01:10,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:01:10,841 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:01:10,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:01:10,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:01:10,842 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:01:10,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:01:10,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:01:10,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:01:10,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:01:10,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:01:10,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:01:10,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:01:11,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:01:11,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:01:11,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:01:11,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:01:11,115 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:01:11,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-05 20:01:11,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/005c9983e/9792ae71a3bc464b8439b78c9ac416a3/FLAG6a5675270 [2021-06-05 20:01:12,014 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:01:12,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-05 20:01:12,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/005c9983e/9792ae71a3bc464b8439b78c9ac416a3/FLAG6a5675270 [2021-06-05 20:01:12,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/005c9983e/9792ae71a3bc464b8439b78c9ac416a3 [2021-06-05 20:01:12,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:01:12,198 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:01:12,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:12,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:01:12,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:01:12,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:12,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28dd8f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12, skipping insertion in model container [2021-06-05 20:01:12,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:12,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:01:12,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:01:12,402 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 20:01:12,704 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-3_2-container_of-global.i[75009,75022] [2021-06-05 20:01:12,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:12,738 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:01:12,746 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 20:01:12,774 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-3_2-container_of-global.i[75009,75022] [2021-06-05 20:01:12,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:12,976 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:01:12,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12 WrapperNode [2021-06-05 20:01:12,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:12,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:12,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:01:12,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:01:12,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:13,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:01:13,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:01:13,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:01:13,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (1/1) ... [2021-06-05 20:01:13,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:01:13,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:01:13,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:01:13,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:01:13,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (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 20:01:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:01:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:01:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:01:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:01:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:01:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:01:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:01:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 20:01:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 20:01:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:01:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:01:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:01:13,130 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 20:01:13,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:01:13,558 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 20:01:13,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:13 BoogieIcfgContainer [2021-06-05 20:01:13,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:01:13,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:01:13,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:01:13,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:01:13,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:01:12" (1/3) ... [2021-06-05 20:01:13,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439dddc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:13, skipping insertion in model container [2021-06-05 20:01:13,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:12" (2/3) ... [2021-06-05 20:01:13,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439dddc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:13, skipping insertion in model container [2021-06-05 20:01:13,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:13" (3/3) ... [2021-06-05 20:01:13,565 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-06-05 20:01:13,569 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:01:13,569 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:01:13,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-05 20:01:13,569 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,605 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,612 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,613 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,613 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,613 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,614 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,615 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,615 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,616 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,616 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,618 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,618 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,618 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,618 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,623 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,623 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,624 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,624 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,624 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,624 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,625 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,625 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,625 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,625 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:13,632 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 20:01:13,646 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 20:01:13,665 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:01:13,665 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:01:13,665 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:01:13,665 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:01:13,665 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:01:13,665 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:01:13,665 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:01:13,665 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:01:13,677 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 162 transitions, 346 flow [2021-06-05 20:01:13,819 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 20:01:13,834 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:13,834 INFO L554 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] [2021-06-05 20:01:13,834 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:13,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1369970770, now seen corresponding path program 1 times [2021-06-05 20:01:13,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:13,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698583975] [2021-06-05 20:01:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:14,147 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 20:01:14,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:14,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698583975] [2021-06-05 20:01:14,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698583975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:14,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:14,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:14,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341972472] [2021-06-05 20:01:14,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:14,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:14,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:14,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:14,171 INFO L87 Difference]: Start difference. First operand has 4278 states, 4267 states have (on average 2.7492383407546286) internal successors, (11731), 4277 states have internal predecessors, (11731), 0 states have call successors, (0), 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 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:14,429 INFO L93 Difference]: Finished difference Result 4075 states and 10961 transitions. [2021-06-05 20:01:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 20:01:14,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 20:01:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:14,460 INFO L225 Difference]: With dead ends: 4075 [2021-06-05 20:01:14,460 INFO L226 Difference]: Without dead ends: 3358 [2021-06-05 20:01:14,461 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:01:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-06-05 20:01:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3357. [2021-06-05 20:01:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 3350 states have (on average 2.681492537313433) internal successors, (8983), 3356 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 8983 transitions. [2021-06-05 20:01:14,610 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 8983 transitions. Word has length 36 [2021-06-05 20:01:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:14,611 INFO L482 AbstractCegarLoop]: Abstraction has 3357 states and 8983 transitions. [2021-06-05 20:01:14,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 8983 transitions. [2021-06-05 20:01:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 20:01:14,613 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:14,613 INFO L554 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] [2021-06-05 20:01:14,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:01:14,614 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:14,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:14,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1499060535, now seen corresponding path program 1 times [2021-06-05 20:01:14,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:14,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4937037] [2021-06-05 20:01:14,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:14,745 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 20:01:14,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:14,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4937037] [2021-06-05 20:01:14,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4937037] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:14,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:14,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:14,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690928334] [2021-06-05 20:01:14,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:14,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:14,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:14,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:14,749 INFO L87 Difference]: Start difference. First operand 3357 states and 8983 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:14,868 INFO L93 Difference]: Finished difference Result 3359 states and 8985 transitions. [2021-06-05 20:01:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:01:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-06-05 20:01:14,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:14,881 INFO L225 Difference]: With dead ends: 3359 [2021-06-05 20:01:14,881 INFO L226 Difference]: Without dead ends: 3359 [2021-06-05 20:01:14,882 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 60.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 20:01:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2021-06-05 20:01:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2021-06-05 20:01:14,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3349 states have (on average 2.6816960286652733) internal successors, (8981), 3354 states have internal predecessors, (8981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 8981 transitions. [2021-06-05 20:01:14,963 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 8981 transitions. Word has length 42 [2021-06-05 20:01:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:14,964 INFO L482 AbstractCegarLoop]: Abstraction has 3355 states and 8981 transitions. [2021-06-05 20:01:14,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 8981 transitions. [2021-06-05 20:01:14,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 20:01:14,965 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:14,965 INFO L554 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] [2021-06-05 20:01:14,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:01:14,965 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:14,966 INFO L82 PathProgramCache]: Analyzing trace with hash 709377487, now seen corresponding path program 1 times [2021-06-05 20:01:14,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:14,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156181122] [2021-06-05 20:01:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:15,079 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 20:01:15,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:15,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156181122] [2021-06-05 20:01:15,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156181122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:15,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:15,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:15,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835170417] [2021-06-05 20:01:15,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:15,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:15,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:15,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:15,081 INFO L87 Difference]: Start difference. First operand 3355 states and 8981 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:15,305 INFO L93 Difference]: Finished difference Result 4878 states and 13059 transitions. [2021-06-05 20:01:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 20:01:15,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-06-05 20:01:15,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:15,325 INFO L225 Difference]: With dead ends: 4878 [2021-06-05 20:01:15,325 INFO L226 Difference]: Without dead ends: 4878 [2021-06-05 20:01:15,325 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2021-06-05 20:01:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3753. [2021-06-05 20:01:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3748 states have (on average 2.683831376734258) internal successors, (10059), 3752 states have internal predecessors, (10059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 10059 transitions. [2021-06-05 20:01:15,420 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 10059 transitions. Word has length 60 [2021-06-05 20:01:15,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:15,422 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 10059 transitions. [2021-06-05 20:01:15,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 10059 transitions. [2021-06-05 20:01:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 20:01:15,427 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:15,427 INFO L554 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 20:01:15,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:01:15,427 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:15,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1924610094, now seen corresponding path program 1 times [2021-06-05 20:01:15,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:15,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771874574] [2021-06-05 20:01:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:15,511 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 20:01:15,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:15,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771874574] [2021-06-05 20:01:15,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771874574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:15,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:15,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:15,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141675359] [2021-06-05 20:01:15,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:15,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:15,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:15,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:15,515 INFO L87 Difference]: Start difference. First operand 3753 states and 10059 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 20:01:15,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:15,705 INFO L93 Difference]: Finished difference Result 5276 states and 14062 transitions. [2021-06-05 20:01:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:01:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 20:01:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:15,721 INFO L225 Difference]: With dead ends: 5276 [2021-06-05 20:01:15,721 INFO L226 Difference]: Without dead ends: 4475 [2021-06-05 20:01:15,721 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 55.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 20:01:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2021-06-05 20:01:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4325. [2021-06-05 20:01:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4321 states have (on average 2.6931265910668825) internal successors, (11637), 4324 states have internal predecessors, (11637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 11637 transitions. [2021-06-05 20:01:15,862 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 11637 transitions. Word has length 66 [2021-06-05 20:01:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:15,862 INFO L482 AbstractCegarLoop]: Abstraction has 4325 states and 11637 transitions. [2021-06-05 20:01:15,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 20:01:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 11637 transitions. [2021-06-05 20:01:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-06-05 20:01:15,870 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:15,870 INFO L554 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] [2021-06-05 20:01:15,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:01:15,870 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:15,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:15,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1721881747, now seen corresponding path program 1 times [2021-06-05 20:01:15,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:15,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145144485] [2021-06-05 20:01:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:15,943 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 20:01:15,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:15,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145144485] [2021-06-05 20:01:15,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145144485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:15,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:15,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:01:15,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322129656] [2021-06-05 20:01:15,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:01:15,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:15,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:01:15,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:15,945 INFO L87 Difference]: Start difference. First operand 4325 states and 11637 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:15,972 INFO L93 Difference]: Finished difference Result 1631 states and 4196 transitions. [2021-06-05 20:01:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:01:15,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-06-05 20:01:15,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:15,977 INFO L225 Difference]: With dead ends: 1631 [2021-06-05 20:01:15,978 INFO L226 Difference]: Without dead ends: 1631 [2021-06-05 20:01:15,978 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:01:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-06-05 20:01:15,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2021-06-05 20:01:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 2.575813382443217) internal successors, (4196), 1630 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 4196 transitions. [2021-06-05 20:01:16,001 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 4196 transitions. Word has length 78 [2021-06-05 20:01:16,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:16,001 INFO L482 AbstractCegarLoop]: Abstraction has 1631 states and 4196 transitions. [2021-06-05 20:01:16,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 4196 transitions. [2021-06-05 20:01:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:16,005 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:16,005 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:16,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:01:16,005 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:16,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:16,005 INFO L82 PathProgramCache]: Analyzing trace with hash -735382200, now seen corresponding path program 1 times [2021-06-05 20:01:16,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:16,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746994398] [2021-06-05 20:01:16,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:16,583 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 20:01:16,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:16,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746994398] [2021-06-05 20:01:16,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746994398] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:16,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:16,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:16,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267516839] [2021-06-05 20:01:16,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:16,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:16,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:16,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:16,586 INFO L87 Difference]: Start difference. First operand 1631 states and 4196 transitions. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:19,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:19,174 INFO L93 Difference]: Finished difference Result 2666 states and 6940 transitions. [2021-06-05 20:01:19,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-05 20:01:19,174 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:19,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:19,179 INFO L225 Difference]: With dead ends: 2666 [2021-06-05 20:01:19,179 INFO L226 Difference]: Without dead ends: 2666 [2021-06-05 20:01:19,180 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 1924.3ms TimeCoverageRelationStatistics Valid=842, Invalid=2464, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:01:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2021-06-05 20:01:19,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2566. [2021-06-05 20:01:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 2.6326053042121687) internal successors, (6750), 2565 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 6750 transitions. [2021-06-05 20:01:19,225 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 6750 transitions. Word has length 105 [2021-06-05 20:01:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:19,226 INFO L482 AbstractCegarLoop]: Abstraction has 2566 states and 6750 transitions. [2021-06-05 20:01:19,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 6750 transitions. [2021-06-05 20:01:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:19,234 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:19,234 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:19,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 20:01:19,234 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:19,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 488844778, now seen corresponding path program 1 times [2021-06-05 20:01:19,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:19,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504985948] [2021-06-05 20:01:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:19,561 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 20:01:19,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:19,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504985948] [2021-06-05 20:01:19,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504985948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:19,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:19,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:19,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795548722] [2021-06-05 20:01:19,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:19,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:19,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:19,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:19,562 INFO L87 Difference]: Start difference. First operand 2566 states and 6750 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:20,223 INFO L93 Difference]: Finished difference Result 3789 states and 9757 transitions. [2021-06-05 20:01:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:20,229 INFO L225 Difference]: With dead ends: 3789 [2021-06-05 20:01:20,230 INFO L226 Difference]: Without dead ends: 3789 [2021-06-05 20:01:20,230 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 436.6ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:01:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-06-05 20:01:20,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3036. [2021-06-05 20:01:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3034 states have (on average 2.584377059986816) internal successors, (7841), 3035 states have internal predecessors, (7841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 7841 transitions. [2021-06-05 20:01:20,279 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 7841 transitions. Word has length 105 [2021-06-05 20:01:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:20,279 INFO L482 AbstractCegarLoop]: Abstraction has 3036 states and 7841 transitions. [2021-06-05 20:01:20,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 7841 transitions. [2021-06-05 20:01:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:20,283 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:20,283 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:20,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 20:01:20,283 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:20,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:20,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1787721726, now seen corresponding path program 2 times [2021-06-05 20:01:20,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:20,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762236532] [2021-06-05 20:01:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:20,518 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 20:01:20,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:20,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762236532] [2021-06-05 20:01:20,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762236532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:20,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:20,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:20,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379754150] [2021-06-05 20:01:20,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:20,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:20,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:20,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:20,520 INFO L87 Difference]: Start difference. First operand 3036 states and 7841 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:21,166 INFO L93 Difference]: Finished difference Result 4077 states and 10298 transitions. [2021-06-05 20:01:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:21,166 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:21,171 INFO L225 Difference]: With dead ends: 4077 [2021-06-05 20:01:21,171 INFO L226 Difference]: Without dead ends: 4077 [2021-06-05 20:01:21,172 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 447.5ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:21,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2021-06-05 20:01:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3066. [2021-06-05 20:01:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 3064 states have (on average 2.5842036553524803) internal successors, (7918), 3065 states have internal predecessors, (7918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 7918 transitions. [2021-06-05 20:01:21,218 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 7918 transitions. Word has length 105 [2021-06-05 20:01:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:21,218 INFO L482 AbstractCegarLoop]: Abstraction has 3066 states and 7918 transitions. [2021-06-05 20:01:21,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 7918 transitions. [2021-06-05 20:01:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:21,222 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:21,223 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:21,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 20:01:21,223 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1759874518, now seen corresponding path program 3 times [2021-06-05 20:01:21,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:21,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237515643] [2021-06-05 20:01:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:21,651 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 20:01:21,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:21,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237515643] [2021-06-05 20:01:21,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237515643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:21,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:21,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-05 20:01:21,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897708985] [2021-06-05 20:01:21,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 20:01:21,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:21,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 20:01:21,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-06-05 20:01:21,653 INFO L87 Difference]: Start difference. First operand 3066 states and 7918 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:23,167 INFO L93 Difference]: Finished difference Result 4299 states and 10825 transitions. [2021-06-05 20:01:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-05 20:01:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:23,173 INFO L225 Difference]: With dead ends: 4299 [2021-06-05 20:01:23,173 INFO L226 Difference]: Without dead ends: 4299 [2021-06-05 20:01:23,174 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1266.7ms TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 20:01:23,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2021-06-05 20:01:23,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3356. [2021-06-05 20:01:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 2.5837805605247466) internal successors, (8666), 3355 states have internal predecessors, (8666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 8666 transitions. [2021-06-05 20:01:23,222 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 8666 transitions. Word has length 105 [2021-06-05 20:01:23,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:23,222 INFO L482 AbstractCegarLoop]: Abstraction has 3356 states and 8666 transitions. [2021-06-05 20:01:23,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 8666 transitions. [2021-06-05 20:01:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:23,227 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:23,227 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:23,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 20:01:23,227 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:23,227 INFO L82 PathProgramCache]: Analyzing trace with hash 187169344, now seen corresponding path program 4 times [2021-06-05 20:01:23,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:23,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100057130] [2021-06-05 20:01:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:23,552 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 20:01:23,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:23,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100057130] [2021-06-05 20:01:23,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100057130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:23,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:23,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:23,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609138896] [2021-06-05 20:01:23,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:23,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:23,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:23,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:23,553 INFO L87 Difference]: Start difference. First operand 3356 states and 8666 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:24,715 INFO L93 Difference]: Finished difference Result 4498 states and 11407 transitions. [2021-06-05 20:01:24,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:24,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:24,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:24,722 INFO L225 Difference]: With dead ends: 4498 [2021-06-05 20:01:24,722 INFO L226 Difference]: Without dead ends: 4498 [2021-06-05 20:01:24,723 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 928.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-06-05 20:01:24,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 3551. [2021-06-05 20:01:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3549 states have (on average 2.5998872921949845) internal successors, (9227), 3550 states have internal predecessors, (9227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 9227 transitions. [2021-06-05 20:01:24,781 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 9227 transitions. Word has length 105 [2021-06-05 20:01:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:24,781 INFO L482 AbstractCegarLoop]: Abstraction has 3551 states and 9227 transitions. [2021-06-05 20:01:24,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 9227 transitions. [2021-06-05 20:01:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:24,786 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:24,786 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:24,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 20:01:24,786 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:24,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:24,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1971920312, now seen corresponding path program 5 times [2021-06-05 20:01:24,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:24,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318637996] [2021-06-05 20:01:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:25,148 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 20:01:25,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:25,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318637996] [2021-06-05 20:01:25,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318637996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:25,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:25,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:25,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864258907] [2021-06-05 20:01:25,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:25,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:25,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:25,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:25,150 INFO L87 Difference]: Start difference. First operand 3551 states and 9227 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:26,352 INFO L93 Difference]: Finished difference Result 4275 states and 10837 transitions. [2021-06-05 20:01:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:26,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:26,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:26,358 INFO L225 Difference]: With dead ends: 4275 [2021-06-05 20:01:26,358 INFO L226 Difference]: Without dead ends: 4275 [2021-06-05 20:01:26,358 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 996.5ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2021-06-05 20:01:26,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3553. [2021-06-05 20:01:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3551 states have (on average 2.5998310335116868) internal successors, (9232), 3552 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 9232 transitions. [2021-06-05 20:01:26,406 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 9232 transitions. Word has length 105 [2021-06-05 20:01:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:26,407 INFO L482 AbstractCegarLoop]: Abstraction has 3553 states and 9232 transitions. [2021-06-05 20:01:26,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 9232 transitions. [2021-06-05 20:01:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:26,411 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:26,411 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:26,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 20:01:26,412 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:26,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1033652586, now seen corresponding path program 6 times [2021-06-05 20:01:26,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:26,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515599452] [2021-06-05 20:01:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:26,872 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 20:01:26,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:26,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515599452] [2021-06-05 20:01:26,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515599452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:26,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:26,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-05 20:01:26,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852082568] [2021-06-05 20:01:26,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 20:01:26,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:26,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 20:01:26,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-06-05 20:01:26,874 INFO L87 Difference]: Start difference. First operand 3553 states and 9232 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:28,438 INFO L93 Difference]: Finished difference Result 5180 states and 12800 transitions. [2021-06-05 20:01:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 20:01:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:28,445 INFO L225 Difference]: With dead ends: 5180 [2021-06-05 20:01:28,445 INFO L226 Difference]: Without dead ends: 5180 [2021-06-05 20:01:28,445 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1327.0ms TimeCoverageRelationStatistics Valid=423, Invalid=1217, Unknown=0, NotChecked=0, Total=1640 [2021-06-05 20:01:28,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-06-05 20:01:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 3529. [2021-06-05 20:01:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 3527 states have (on average 2.5971080238162743) internal successors, (9160), 3528 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 9160 transitions. [2021-06-05 20:01:28,531 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 9160 transitions. Word has length 105 [2021-06-05 20:01:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:28,531 INFO L482 AbstractCegarLoop]: Abstraction has 3529 states and 9160 transitions. [2021-06-05 20:01:28,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 9160 transitions. [2021-06-05 20:01:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:28,536 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:28,536 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:28,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 20:01:28,537 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:28,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:28,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1654948062, now seen corresponding path program 7 times [2021-06-05 20:01:28,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:28,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379481272] [2021-06-05 20:01:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:28,978 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 20:01:28,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:28,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379481272] [2021-06-05 20:01:28,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379481272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:28,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:28,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-05 20:01:28,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041578130] [2021-06-05 20:01:28,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 20:01:28,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:28,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 20:01:28,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-06-05 20:01:28,979 INFO L87 Difference]: Start difference. First operand 3529 states and 9160 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:30,482 INFO L93 Difference]: Finished difference Result 4434 states and 11097 transitions. [2021-06-05 20:01:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:30,488 INFO L225 Difference]: With dead ends: 4434 [2021-06-05 20:01:30,488 INFO L226 Difference]: Without dead ends: 4434 [2021-06-05 20:01:30,488 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1291.0ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-06-05 20:01:30,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2021-06-05 20:01:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 3537. [2021-06-05 20:01:30,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3535 states have (on average 2.596888260254597) internal successors, (9180), 3536 states have internal predecessors, (9180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 9180 transitions. [2021-06-05 20:01:30,534 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 9180 transitions. Word has length 105 [2021-06-05 20:01:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:30,534 INFO L482 AbstractCegarLoop]: Abstraction has 3537 states and 9180 transitions. [2021-06-05 20:01:30,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 9180 transitions. [2021-06-05 20:01:30,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:30,539 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:30,539 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:30,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 20:01:30,539 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:30,540 INFO L82 PathProgramCache]: Analyzing trace with hash -594054976, now seen corresponding path program 8 times [2021-06-05 20:01:30,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:30,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88575759] [2021-06-05 20:01:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:30,828 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 20:01:30,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:30,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88575759] [2021-06-05 20:01:30,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88575759] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:30,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:30,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:30,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228729663] [2021-06-05 20:01:30,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:30,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:30,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:30,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:30,830 INFO L87 Difference]: Start difference. First operand 3537 states and 9180 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:32,596 INFO L93 Difference]: Finished difference Result 5067 states and 12513 transitions. [2021-06-05 20:01:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:01:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:32,600 INFO L225 Difference]: With dead ends: 5067 [2021-06-05 20:01:32,600 INFO L226 Difference]: Without dead ends: 5067 [2021-06-05 20:01:32,601 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1480.3ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 20:01:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2021-06-05 20:01:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 3531. [2021-06-05 20:01:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3529 states have (on average 2.5970529895154435) internal successors, (9165), 3530 states have internal predecessors, (9165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 9165 transitions. [2021-06-05 20:01:32,646 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 9165 transitions. Word has length 105 [2021-06-05 20:01:32,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:32,646 INFO L482 AbstractCegarLoop]: Abstraction has 3531 states and 9165 transitions. [2021-06-05 20:01:32,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 9165 transitions. [2021-06-05 20:01:32,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:32,652 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:32,653 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:32,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 20:01:32,653 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:32,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:32,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1036005680, now seen corresponding path program 9 times [2021-06-05 20:01:32,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:32,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367919957] [2021-06-05 20:01:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:32,861 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 20:01:32,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:32,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367919957] [2021-06-05 20:01:32,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367919957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:32,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:32,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:32,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021327730] [2021-06-05 20:01:32,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:32,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:32,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:32,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:32,863 INFO L87 Difference]: Start difference. First operand 3531 states and 9165 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:33,463 INFO L93 Difference]: Finished difference Result 3944 states and 9981 transitions. [2021-06-05 20:01:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:01:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:33,468 INFO L225 Difference]: With dead ends: 3944 [2021-06-05 20:01:33,469 INFO L226 Difference]: Without dead ends: 3944 [2021-06-05 20:01:33,471 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 472.9ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:33,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2021-06-05 20:01:33,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3527. [2021-06-05 20:01:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 3525 states have (on average 2.5988652482269505) internal successors, (9161), 3526 states have internal predecessors, (9161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 9161 transitions. [2021-06-05 20:01:33,538 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 9161 transitions. Word has length 105 [2021-06-05 20:01:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:33,538 INFO L482 AbstractCegarLoop]: Abstraction has 3527 states and 9161 transitions. [2021-06-05 20:01:33,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 9161 transitions. [2021-06-05 20:01:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:33,543 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:33,543 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:33,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 20:01:33,544 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:33,544 INFO L82 PathProgramCache]: Analyzing trace with hash 419287134, now seen corresponding path program 10 times [2021-06-05 20:01:33,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:33,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445306253] [2021-06-05 20:01:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:33,908 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 20:01:33,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:33,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445306253] [2021-06-05 20:01:33,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445306253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:33,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:33,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:33,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803368867] [2021-06-05 20:01:33,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:33,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:33,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:33,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:33,911 INFO L87 Difference]: Start difference. First operand 3527 states and 9161 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:34,980 INFO L93 Difference]: Finished difference Result 4153 states and 10417 transitions. [2021-06-05 20:01:34,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:34,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:34,984 INFO L225 Difference]: With dead ends: 4153 [2021-06-05 20:01:34,984 INFO L226 Difference]: Without dead ends: 4153 [2021-06-05 20:01:34,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 882.5ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:34,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2021-06-05 20:01:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 3533. [2021-06-05 20:01:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3531 states have (on average 2.5986972529028605) internal successors, (9176), 3532 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 9176 transitions. [2021-06-05 20:01:35,029 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 9176 transitions. Word has length 105 [2021-06-05 20:01:35,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:35,029 INFO L482 AbstractCegarLoop]: Abstraction has 3533 states and 9176 transitions. [2021-06-05 20:01:35,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 9176 transitions. [2021-06-05 20:01:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:35,033 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:35,033 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:35,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 20:01:35,033 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:35,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:35,033 INFO L82 PathProgramCache]: Analyzing trace with hash -796621898, now seen corresponding path program 11 times [2021-06-05 20:01:35,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:35,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452944489] [2021-06-05 20:01:35,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:35,219 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 20:01:35,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:35,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452944489] [2021-06-05 20:01:35,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452944489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:35,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:35,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:35,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094624269] [2021-06-05 20:01:35,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:35,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:35,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:35,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:35,221 INFO L87 Difference]: Start difference. First operand 3533 states and 9176 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:35,810 INFO L93 Difference]: Finished difference Result 4509 states and 11212 transitions. [2021-06-05 20:01:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:35,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:35,813 INFO L225 Difference]: With dead ends: 4509 [2021-06-05 20:01:35,813 INFO L226 Difference]: Without dead ends: 4509 [2021-06-05 20:01:35,814 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 410.6ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2021-06-05 20:01:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 3520. [2021-06-05 20:01:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3518 states have (on average 2.5974985787379192) internal successors, (9138), 3519 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 9138 transitions. [2021-06-05 20:01:35,857 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 9138 transitions. Word has length 105 [2021-06-05 20:01:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:35,857 INFO L482 AbstractCegarLoop]: Abstraction has 3520 states and 9138 transitions. [2021-06-05 20:01:35,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 9138 transitions. [2021-06-05 20:01:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:35,861 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:35,861 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:35,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 20:01:35,861 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:35,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:35,862 INFO L82 PathProgramCache]: Analyzing trace with hash 832988194, now seen corresponding path program 12 times [2021-06-05 20:01:35,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:35,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927893138] [2021-06-05 20:01:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:36,218 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 20:01:36,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:36,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927893138] [2021-06-05 20:01:36,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927893138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:36,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:36,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-05 20:01:36,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287215230] [2021-06-05 20:01:36,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 20:01:36,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:36,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 20:01:36,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-06-05 20:01:36,219 INFO L87 Difference]: Start difference. First operand 3520 states and 9138 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:37,331 INFO L93 Difference]: Finished difference Result 5120 states and 12988 transitions. [2021-06-05 20:01:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:37,336 INFO L225 Difference]: With dead ends: 5120 [2021-06-05 20:01:37,336 INFO L226 Difference]: Without dead ends: 5120 [2021-06-05 20:01:37,336 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 910.0ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2021-06-05 20:01:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3619. [2021-06-05 20:01:37,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-06-05 20:01:37,386 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-06-05 20:01:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:37,386 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-06-05 20:01:37,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 20 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:37,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-06-05 20:01:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:37,390 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:37,390 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:37,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 20:01:37,391 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:37,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:37,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2142019302, now seen corresponding path program 13 times [2021-06-05 20:01:37,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:37,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178462377] [2021-06-05 20:01:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:37,693 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 20:01:37,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:37,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178462377] [2021-06-05 20:01:37,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178462377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:37,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:37,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:37,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264390479] [2021-06-05 20:01:37,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:37,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:37,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:37,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:37,695 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:38,750 INFO L93 Difference]: Finished difference Result 5756 states and 14572 transitions. [2021-06-05 20:01:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:38,756 INFO L225 Difference]: With dead ends: 5756 [2021-06-05 20:01:38,756 INFO L226 Difference]: Without dead ends: 5756 [2021-06-05 20:01:38,756 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 918.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-06-05 20:01:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 3655. [2021-06-05 20:01:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3653 states have (on average 2.6058034492198194) internal successors, (9519), 3654 states have internal predecessors, (9519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9519 transitions. [2021-06-05 20:01:38,804 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9519 transitions. Word has length 105 [2021-06-05 20:01:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:38,805 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9519 transitions. [2021-06-05 20:01:38,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9519 transitions. [2021-06-05 20:01:38,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:38,809 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:38,809 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:38,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 20:01:38,809 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:38,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:38,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1456313546, now seen corresponding path program 14 times [2021-06-05 20:01:38,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:38,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059880912] [2021-06-05 20:01:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:39,117 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 20:01:39,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:39,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059880912] [2021-06-05 20:01:39,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059880912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:39,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:39,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:39,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894476282] [2021-06-05 20:01:39,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:39,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:39,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:39,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:39,121 INFO L87 Difference]: Start difference. First operand 3655 states and 9519 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:40,347 INFO L93 Difference]: Finished difference Result 5527 states and 13989 transitions. [2021-06-05 20:01:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:40,347 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:40,352 INFO L225 Difference]: With dead ends: 5527 [2021-06-05 20:01:40,352 INFO L226 Difference]: Without dead ends: 5527 [2021-06-05 20:01:40,352 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1029.8ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-06-05 20:01:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 3619. [2021-06-05 20:01:40,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3617 states have (on average 2.6018800110588884) internal successors, (9411), 3618 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 9411 transitions. [2021-06-05 20:01:40,395 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 9411 transitions. Word has length 105 [2021-06-05 20:01:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:40,395 INFO L482 AbstractCegarLoop]: Abstraction has 3619 states and 9411 transitions. [2021-06-05 20:01:40,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 9411 transitions. [2021-06-05 20:01:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:40,399 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:40,399 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:40,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 20:01:40,399 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:40,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:40,400 INFO L82 PathProgramCache]: Analyzing trace with hash 837734198, now seen corresponding path program 15 times [2021-06-05 20:01:40,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:40,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134159472] [2021-06-05 20:01:40,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:40,596 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 20:01:40,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:40,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134159472] [2021-06-05 20:01:40,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134159472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:40,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:40,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:40,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424264709] [2021-06-05 20:01:40,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:40,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:40,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:40,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:40,597 INFO L87 Difference]: Start difference. First operand 3619 states and 9411 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:41,208 INFO L93 Difference]: Finished difference Result 4625 states and 11444 transitions. [2021-06-05 20:01:41,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:41,209 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:41,212 INFO L225 Difference]: With dead ends: 4625 [2021-06-05 20:01:41,212 INFO L226 Difference]: Without dead ends: 4625 [2021-06-05 20:01:41,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 455.9ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2021-06-05 20:01:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 3622. [2021-06-05 20:01:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3620 states have (on average 2.600276243093923) internal successors, (9413), 3621 states have internal predecessors, (9413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 9413 transitions. [2021-06-05 20:01:41,252 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 9413 transitions. Word has length 105 [2021-06-05 20:01:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:41,252 INFO L482 AbstractCegarLoop]: Abstraction has 3622 states and 9413 transitions. [2021-06-05 20:01:41,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 9413 transitions. [2021-06-05 20:01:41,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:41,256 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:41,256 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:41,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 20:01:41,256 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1042359838, now seen corresponding path program 16 times [2021-06-05 20:01:41,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:41,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913607763] [2021-06-05 20:01:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:41,537 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 20:01:41,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:41,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913607763] [2021-06-05 20:01:41,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913607763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:41,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:41,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:41,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922257607] [2021-06-05 20:01:41,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:41,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:41,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:41,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:41,538 INFO L87 Difference]: Start difference. First operand 3622 states and 9413 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:42,615 INFO L93 Difference]: Finished difference Result 5127 states and 12920 transitions. [2021-06-05 20:01:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:42,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:42,620 INFO L225 Difference]: With dead ends: 5127 [2021-06-05 20:01:42,620 INFO L226 Difference]: Without dead ends: 5127 [2021-06-05 20:01:42,621 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 961.2ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5127 states. [2021-06-05 20:01:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5127 to 3624. [2021-06-05 20:01:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.600220872446162) internal successors, (9418), 3623 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-06-05 20:01:42,662 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-06-05 20:01:42,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:42,662 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-06-05 20:01:42,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-06-05 20:01:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:42,666 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:42,666 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:42,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 20:01:42,666 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:42,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:42,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152698, now seen corresponding path program 17 times [2021-06-05 20:01:42,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:42,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670170996] [2021-06-05 20:01:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:42,955 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 20:01:42,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:42,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670170996] [2021-06-05 20:01:42,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670170996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:42,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:42,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:42,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292659025] [2021-06-05 20:01:42,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:42,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:42,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:42,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:42,956 INFO L87 Difference]: Start difference. First operand 3624 states and 9418 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:44,562 INFO L93 Difference]: Finished difference Result 6511 states and 16225 transitions. [2021-06-05 20:01:44,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 20:01:44,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:44,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:44,571 INFO L225 Difference]: With dead ends: 6511 [2021-06-05 20:01:44,571 INFO L226 Difference]: Without dead ends: 6511 [2021-06-05 20:01:44,572 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1352.5ms TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 20:01:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6511 states. [2021-06-05 20:01:44,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6511 to 3672. [2021-06-05 20:01:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3670 states have (on average 2.605449591280654) internal successors, (9562), 3671 states have internal predecessors, (9562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 9562 transitions. [2021-06-05 20:01:44,623 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 9562 transitions. Word has length 105 [2021-06-05 20:01:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:44,624 INFO L482 AbstractCegarLoop]: Abstraction has 3672 states and 9562 transitions. [2021-06-05 20:01:44,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 9562 transitions. [2021-06-05 20:01:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:44,627 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:44,627 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:44,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 20:01:44,627 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:44,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:44,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1039446942, now seen corresponding path program 18 times [2021-06-05 20:01:44,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:44,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266823892] [2021-06-05 20:01:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:44,949 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 20:01:44,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:44,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266823892] [2021-06-05 20:01:44,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266823892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:44,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:44,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:44,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208365205] [2021-06-05 20:01:44,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:44,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:44,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:44,950 INFO L87 Difference]: Start difference. First operand 3672 states and 9562 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:46,748 INFO L93 Difference]: Finished difference Result 6278 states and 15634 transitions. [2021-06-05 20:01:46,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 20:01:46,749 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:46,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:46,754 INFO L225 Difference]: With dead ends: 6278 [2021-06-05 20:01:46,754 INFO L226 Difference]: Without dead ends: 6278 [2021-06-05 20:01:46,755 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1450.9ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 20:01:46,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2021-06-05 20:01:46,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 3636. [2021-06-05 20:01:46,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3634 states have (on average 2.601541001651073) internal successors, (9454), 3635 states have internal predecessors, (9454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 9454 transitions. [2021-06-05 20:01:46,803 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 9454 transitions. Word has length 105 [2021-06-05 20:01:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:46,803 INFO L482 AbstractCegarLoop]: Abstraction has 3636 states and 9454 transitions. [2021-06-05 20:01:46,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 9454 transitions. [2021-06-05 20:01:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:46,807 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:46,807 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:46,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 20:01:46,807 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:46,807 INFO L82 PathProgramCache]: Analyzing trace with hash -792087630, now seen corresponding path program 19 times [2021-06-05 20:01:46,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:46,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23318335] [2021-06-05 20:01:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:47,097 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 20:01:47,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:47,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23318335] [2021-06-05 20:01:47,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23318335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:47,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:47,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:47,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623192385] [2021-06-05 20:01:47,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:47,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:47,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:47,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:47,098 INFO L87 Difference]: Start difference. First operand 3636 states and 9454 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:48,471 INFO L93 Difference]: Finished difference Result 5693 states and 14188 transitions. [2021-06-05 20:01:48,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:48,471 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:48,476 INFO L225 Difference]: With dead ends: 5693 [2021-06-05 20:01:48,477 INFO L226 Difference]: Without dead ends: 5693 [2021-06-05 20:01:48,477 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1036.2ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2021-06-05 20:01:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 3624. [2021-06-05 20:01:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3622 states have (on average 2.600220872446162) internal successors, (9418), 3623 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9418 transitions. [2021-06-05 20:01:48,518 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9418 transitions. Word has length 105 [2021-06-05 20:01:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:48,518 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9418 transitions. [2021-06-05 20:01:48,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9418 transitions. [2021-06-05 20:01:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:48,521 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:48,521 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:48,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 20:01:48,521 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash -2082746550, now seen corresponding path program 20 times [2021-06-05 20:01:48,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:48,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596196321] [2021-06-05 20:01:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:48,788 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 20:01:48,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:48,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596196321] [2021-06-05 20:01:48,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596196321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:48,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:48,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:48,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191891601] [2021-06-05 20:01:48,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:48,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:48,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:48,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:48,790 INFO L87 Difference]: Start difference. First operand 3624 states and 9418 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:49,823 INFO L93 Difference]: Finished difference Result 4795 states and 11953 transitions. [2021-06-05 20:01:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:49,827 INFO L225 Difference]: With dead ends: 4795 [2021-06-05 20:01:49,827 INFO L226 Difference]: Without dead ends: 4795 [2021-06-05 20:01:49,827 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 911.3ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2021-06-05 20:01:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 3626. [2021-06-05 20:01:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-06-05 20:01:49,867 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-06-05 20:01:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:49,868 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-06-05 20:01:49,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-06-05 20:01:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:49,871 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:49,871 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:49,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 20:01:49,871 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash -635137250, now seen corresponding path program 21 times [2021-06-05 20:01:49,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:49,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385517340] [2021-06-05 20:01:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:50,173 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 20:01:50,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:50,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385517340] [2021-06-05 20:01:50,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385517340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:50,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:50,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:50,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189560985] [2021-06-05 20:01:50,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:50,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:50,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:50,175 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:51,323 INFO L93 Difference]: Finished difference Result 4735 states and 11824 transitions. [2021-06-05 20:01:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:51,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:51,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:51,328 INFO L225 Difference]: With dead ends: 4735 [2021-06-05 20:01:51,328 INFO L226 Difference]: Without dead ends: 4735 [2021-06-05 20:01:51,329 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 979.5ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-06-05 20:01:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3626. [2021-06-05 20:01:51,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.600165562913907) internal successors, (9423), 3625 states have internal predecessors, (9423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9423 transitions. [2021-06-05 20:01:51,365 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9423 transitions. Word has length 105 [2021-06-05 20:01:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:51,365 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 9423 transitions. [2021-06-05 20:01:51,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9423 transitions. [2021-06-05 20:01:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:51,368 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:51,368 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:51,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 20:01:51,368 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:51,369 INFO L82 PathProgramCache]: Analyzing trace with hash -2114633644, now seen corresponding path program 22 times [2021-06-05 20:01:51,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:51,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810553600] [2021-06-05 20:01:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:51,660 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 20:01:51,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:51,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810553600] [2021-06-05 20:01:51,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810553600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:51,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:51,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:51,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383859418] [2021-06-05 20:01:51,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:51,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:51,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:51,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:51,661 INFO L87 Difference]: Start difference. First operand 3626 states and 9423 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:52,543 INFO L93 Difference]: Finished difference Result 4621 states and 11441 transitions. [2021-06-05 20:01:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:52,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:52,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:52,548 INFO L225 Difference]: With dead ends: 4621 [2021-06-05 20:01:52,548 INFO L226 Difference]: Without dead ends: 4621 [2021-06-05 20:01:52,549 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 681.0ms TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2021-06-05 20:01:52,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3620. [2021-06-05 20:01:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-06-05 20:01:52,590 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-06-05 20:01:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:52,590 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-06-05 20:01:52,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-06-05 20:01:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:52,593 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:52,593 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:52,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 20:01:52,593 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:52,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:52,594 INFO L82 PathProgramCache]: Analyzing trace with hash -318688926, now seen corresponding path program 23 times [2021-06-05 20:01:52,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:52,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370249174] [2021-06-05 20:01:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:52,863 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 20:01:52,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:52,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370249174] [2021-06-05 20:01:52,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370249174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:52,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:52,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:52,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823074369] [2021-06-05 20:01:52,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:52,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:52,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:52,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:52,865 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:53,895 INFO L93 Difference]: Finished difference Result 4396 states and 10944 transitions. [2021-06-05 20:01:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:53,899 INFO L225 Difference]: With dead ends: 4396 [2021-06-05 20:01:53,899 INFO L226 Difference]: Without dead ends: 4396 [2021-06-05 20:01:53,900 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 859.2ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2021-06-05 20:01:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 3620. [2021-06-05 20:01:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.600331674958541) internal successors, (9408), 3619 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9408 transitions. [2021-06-05 20:01:53,936 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9408 transitions. Word has length 105 [2021-06-05 20:01:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:53,936 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9408 transitions. [2021-06-05 20:01:53,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:53,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9408 transitions. [2021-06-05 20:01:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:53,939 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:53,940 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:53,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 20:01:53,940 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:53,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1667670798, now seen corresponding path program 24 times [2021-06-05 20:01:53,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:53,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179498278] [2021-06-05 20:01:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:54,220 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 20:01:54,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:54,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179498278] [2021-06-05 20:01:54,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179498278] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:54,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:54,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:54,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090218298] [2021-06-05 20:01:54,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:54,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:54,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:54,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:54,222 INFO L87 Difference]: Start difference. First operand 3620 states and 9408 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:55,322 INFO L93 Difference]: Finished difference Result 4479 states and 11103 transitions. [2021-06-05 20:01:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:55,323 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:55,327 INFO L225 Difference]: With dead ends: 4479 [2021-06-05 20:01:55,327 INFO L226 Difference]: Without dead ends: 4479 [2021-06-05 20:01:55,328 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 922.3ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:55,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2021-06-05 20:01:55,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 3616. [2021-06-05 20:01:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3614 states have (on average 2.600442722744881) internal successors, (9398), 3615 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 9398 transitions. [2021-06-05 20:01:55,364 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 9398 transitions. Word has length 105 [2021-06-05 20:01:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:55,364 INFO L482 AbstractCegarLoop]: Abstraction has 3616 states and 9398 transitions. [2021-06-05 20:01:55,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 9398 transitions. [2021-06-05 20:01:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:55,367 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:55,368 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:55,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 20:01:55,368 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:55,368 INFO L82 PathProgramCache]: Analyzing trace with hash -369811618, now seen corresponding path program 25 times [2021-06-05 20:01:55,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:55,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018648726] [2021-06-05 20:01:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:55,561 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 20:01:55,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:55,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018648726] [2021-06-05 20:01:55,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018648726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:55,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:55,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:55,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588053729] [2021-06-05 20:01:55,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:55,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:55,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:55,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:55,562 INFO L87 Difference]: Start difference. First operand 3616 states and 9398 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:56,071 INFO L93 Difference]: Finished difference Result 4063 states and 10283 transitions. [2021-06-05 20:01:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:01:56,071 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:56,075 INFO L225 Difference]: With dead ends: 4063 [2021-06-05 20:01:56,075 INFO L226 Difference]: Without dead ends: 4063 [2021-06-05 20:01:56,076 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 413.2ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-06-05 20:01:56,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 3548. [2021-06-05 20:01:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3548 states, 3546 states have (on average 2.604624929498026) internal successors, (9236), 3547 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 9236 transitions. [2021-06-05 20:01:56,112 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 9236 transitions. Word has length 105 [2021-06-05 20:01:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:56,113 INFO L482 AbstractCegarLoop]: Abstraction has 3548 states and 9236 transitions. [2021-06-05 20:01:56,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 9236 transitions. [2021-06-05 20:01:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:56,115 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:56,116 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:56,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 20:01:56,116 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash -124075606, now seen corresponding path program 26 times [2021-06-05 20:01:56,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:56,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559512930] [2021-06-05 20:01:56,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:56,387 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 20:01:56,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:56,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559512930] [2021-06-05 20:01:56,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559512930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:56,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:56,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:56,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461466392] [2021-06-05 20:01:56,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:56,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:56,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:56,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:56,389 INFO L87 Difference]: Start difference. First operand 3548 states and 9236 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:57,485 INFO L93 Difference]: Finished difference Result 5792 states and 14693 transitions. [2021-06-05 20:01:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:57,485 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:57,490 INFO L225 Difference]: With dead ends: 5792 [2021-06-05 20:01:57,490 INFO L226 Difference]: Without dead ends: 5792 [2021-06-05 20:01:57,491 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 880.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2021-06-05 20:01:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 3774. [2021-06-05 20:01:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3772 states have (on average 2.627253446447508) internal successors, (9910), 3773 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 9910 transitions. [2021-06-05 20:01:57,532 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 9910 transitions. Word has length 105 [2021-06-05 20:01:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:57,532 INFO L482 AbstractCegarLoop]: Abstraction has 3774 states and 9910 transitions. [2021-06-05 20:01:57,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 9910 transitions. [2021-06-05 20:01:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:57,535 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:57,535 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:57,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 20:01:57,535 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash -809781362, now seen corresponding path program 27 times [2021-06-05 20:01:57,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:57,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972750603] [2021-06-05 20:01:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:57,822 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 20:01:57,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:57,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972750603] [2021-06-05 20:01:57,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972750603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:57,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:57,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:57,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216770684] [2021-06-05 20:01:57,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:57,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:57,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:57,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:57,823 INFO L87 Difference]: Start difference. First operand 3774 states and 9910 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:58,955 INFO L93 Difference]: Finished difference Result 5338 states and 13542 transitions. [2021-06-05 20:01:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:58,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:01:58,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:58,960 INFO L225 Difference]: With dead ends: 5338 [2021-06-05 20:01:58,961 INFO L226 Difference]: Without dead ends: 5338 [2021-06-05 20:01:58,961 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 975.4ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2021-06-05 20:01:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3743. [2021-06-05 20:01:58,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 3741 states have (on average 2.623630045442395) internal successors, (9815), 3742 states have internal predecessors, (9815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9815 transitions. [2021-06-05 20:01:59,001 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9815 transitions. Word has length 105 [2021-06-05 20:01:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:59,001 INFO L482 AbstractCegarLoop]: Abstraction has 3743 states and 9815 transitions. [2021-06-05 20:01:59,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9815 transitions. [2021-06-05 20:01:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:01:59,004 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:59,004 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:59,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 20:01:59,004 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:59,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:59,005 INFO L82 PathProgramCache]: Analyzing trace with hash 889122722, now seen corresponding path program 28 times [2021-06-05 20:01:59,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:59,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506883949] [2021-06-05 20:01:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:59,258 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 20:01:59,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:59,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506883949] [2021-06-05 20:01:59,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506883949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:59,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:59,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:59,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127092791] [2021-06-05 20:01:59,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:59,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:59,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:59,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:59,259 INFO L87 Difference]: Start difference. First operand 3743 states and 9815 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:00,338 INFO L93 Difference]: Finished difference Result 5534 states and 13944 transitions. [2021-06-05 20:02:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:00,342 INFO L225 Difference]: With dead ends: 5534 [2021-06-05 20:02:00,342 INFO L226 Difference]: Without dead ends: 5534 [2021-06-05 20:02:00,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 906.9ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2021-06-05 20:02:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 3712. [2021-06-05 20:02:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3710 states have (on average 2.6199460916442048) internal successors, (9720), 3711 states have internal predecessors, (9720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 9720 transitions. [2021-06-05 20:02:00,381 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 9720 transitions. Word has length 105 [2021-06-05 20:02:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:00,382 INFO L482 AbstractCegarLoop]: Abstraction has 3712 states and 9720 transitions. [2021-06-05 20:02:00,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 9720 transitions. [2021-06-05 20:02:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:00,385 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:00,385 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:00,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 20:02:00,385 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:00,385 INFO L82 PathProgramCache]: Analyzing trace with hash -2013372850, now seen corresponding path program 29 times [2021-06-05 20:02:00,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:00,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304552211] [2021-06-05 20:02:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:00,641 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 20:02:00,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:00,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304552211] [2021-06-05 20:02:00,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304552211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:00,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:00,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:00,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846937359] [2021-06-05 20:02:00,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:00,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:00,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:00,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:00,643 INFO L87 Difference]: Start difference. First operand 3712 states and 9720 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:01,465 INFO L93 Difference]: Finished difference Result 4556 states and 11438 transitions. [2021-06-05 20:02:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:01,470 INFO L225 Difference]: With dead ends: 4556 [2021-06-05 20:02:01,470 INFO L226 Difference]: Without dead ends: 4556 [2021-06-05 20:02:01,471 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 680.5ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-06-05 20:02:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 3742. [2021-06-05 20:02:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:01,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-06-05 20:02:01,511 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-06-05 20:02:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:01,511 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-06-05 20:02:01,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-06-05 20:02:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:01,514 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:01,514 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:01,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 20:02:01,514 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash 2032954612, now seen corresponding path program 30 times [2021-06-05 20:02:01,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:01,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654083650] [2021-06-05 20:02:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:01,779 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 20:02:01,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:01,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654083650] [2021-06-05 20:02:01,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654083650] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:01,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:01,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:01,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474627006] [2021-06-05 20:02:01,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:01,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:01,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:01,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:01,780 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:02,808 INFO L93 Difference]: Finished difference Result 7647 states and 19247 transitions. [2021-06-05 20:02:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:02:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:02,816 INFO L225 Difference]: With dead ends: 7647 [2021-06-05 20:02:02,816 INFO L226 Difference]: Without dead ends: 7647 [2021-06-05 20:02:02,816 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 873.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:02,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7647 states. [2021-06-05 20:02:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7647 to 3814. [2021-06-05 20:02:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3812 states have (on average 2.626180482686254) internal successors, (10011), 3813 states have internal predecessors, (10011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 10011 transitions. [2021-06-05 20:02:02,865 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 10011 transitions. Word has length 105 [2021-06-05 20:02:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:02,865 INFO L482 AbstractCegarLoop]: Abstraction has 3814 states and 10011 transitions. [2021-06-05 20:02:02,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 10011 transitions. [2021-06-05 20:02:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:02,868 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:02,868 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:02,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 20:02:02,868 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:02,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1347248856, now seen corresponding path program 31 times [2021-06-05 20:02:02,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:02,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003978261] [2021-06-05 20:02:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:03,120 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 20:02:03,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:03,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003978261] [2021-06-05 20:02:03,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003978261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:03,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:03,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:03,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905885348] [2021-06-05 20:02:03,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:03,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:03,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:03,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:03,122 INFO L87 Difference]: Start difference. First operand 3814 states and 10011 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:04,283 INFO L93 Difference]: Finished difference Result 7193 states and 18096 transitions. [2021-06-05 20:02:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:04,289 INFO L225 Difference]: With dead ends: 7193 [2021-06-05 20:02:04,289 INFO L226 Difference]: Without dead ends: 7193 [2021-06-05 20:02:04,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 947.7ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:02:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2021-06-05 20:02:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 3742. [2021-06-05 20:02:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3740 states have (on average 2.6189839572192515) internal successors, (9795), 3741 states have internal predecessors, (9795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 9795 transitions. [2021-06-05 20:02:04,330 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 9795 transitions. Word has length 105 [2021-06-05 20:02:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:04,331 INFO L482 AbstractCegarLoop]: Abstraction has 3742 states and 9795 transitions. [2021-06-05 20:02:04,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 9795 transitions. [2021-06-05 20:02:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:04,334 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:04,334 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:04,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 20:02:04,334 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1248814356, now seen corresponding path program 32 times [2021-06-05 20:02:04,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:04,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016345833] [2021-06-05 20:02:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:04,613 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 20:02:04,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:04,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016345833] [2021-06-05 20:02:04,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016345833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:04,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:04,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:04,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272384612] [2021-06-05 20:02:04,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:04,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:04,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:04,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:04,615 INFO L87 Difference]: Start difference. First operand 3742 states and 9795 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:05,721 INFO L93 Difference]: Finished difference Result 6538 states and 16410 transitions. [2021-06-05 20:02:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:05,721 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:05,727 INFO L225 Difference]: With dead ends: 6538 [2021-06-05 20:02:05,727 INFO L226 Difference]: Without dead ends: 6538 [2021-06-05 20:02:05,728 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 935.4ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6538 states. [2021-06-05 20:02:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6538 to 3669. [2021-06-05 20:02:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 3667 states have (on average 2.61139896373057) internal successors, (9576), 3668 states have internal predecessors, (9576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 9576 transitions. [2021-06-05 20:02:05,770 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 9576 transitions. Word has length 105 [2021-06-05 20:02:05,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:05,770 INFO L482 AbstractCegarLoop]: Abstraction has 3669 states and 9576 transitions. [2021-06-05 20:02:05,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 9576 transitions. [2021-06-05 20:02:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:05,773 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:05,773 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:05,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 20:02:05,773 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:05,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1616088008, now seen corresponding path program 33 times [2021-06-05 20:02:05,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:05,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32789108] [2021-06-05 20:02:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:06,033 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 20:02:06,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:06,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32789108] [2021-06-05 20:02:06,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32789108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:06,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:06,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:06,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541410652] [2021-06-05 20:02:06,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:06,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:06,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:06,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:06,035 INFO L87 Difference]: Start difference. First operand 3669 states and 9576 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:07,636 INFO L93 Difference]: Finished difference Result 6413 states and 15962 transitions. [2021-06-05 20:02:07,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 20:02:07,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:07,642 INFO L225 Difference]: With dead ends: 6413 [2021-06-05 20:02:07,643 INFO L226 Difference]: Without dead ends: 6413 [2021-06-05 20:02:07,643 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1344.9ms TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 20:02:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2021-06-05 20:02:07,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 2966. [2021-06-05 20:02:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2964 states have (on average 2.6039136302294197) internal successors, (7718), 2965 states have internal predecessors, (7718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 7718 transitions. [2021-06-05 20:02:07,682 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 7718 transitions. Word has length 105 [2021-06-05 20:02:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:07,682 INFO L482 AbstractCegarLoop]: Abstraction has 2966 states and 7718 transitions. [2021-06-05 20:02:07,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 7718 transitions. [2021-06-05 20:02:07,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:07,684 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:07,684 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:07,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 20:02:07,684 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:07,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:07,685 INFO L82 PathProgramCache]: Analyzing trace with hash 930382252, now seen corresponding path program 34 times [2021-06-05 20:02:07,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:07,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835030765] [2021-06-05 20:02:07,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:07,944 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 20:02:07,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:07,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835030765] [2021-06-05 20:02:07,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835030765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:07,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:07,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:07,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217465909] [2021-06-05 20:02:07,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:07,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:07,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:07,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:07,945 INFO L87 Difference]: Start difference. First operand 2966 states and 7718 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:09,560 INFO L93 Difference]: Finished difference Result 5916 states and 14711 transitions. [2021-06-05 20:02:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 20:02:09,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:09,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:09,565 INFO L225 Difference]: With dead ends: 5916 [2021-06-05 20:02:09,566 INFO L226 Difference]: Without dead ends: 5916 [2021-06-05 20:02:09,566 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1351.6ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 20:02:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5916 states. [2021-06-05 20:02:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5916 to 2891. [2021-06-05 20:02:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2889 states have (on average 2.593631014191762) internal successors, (7493), 2890 states have internal predecessors, (7493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 7493 transitions. [2021-06-05 20:02:09,601 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 7493 transitions. Word has length 105 [2021-06-05 20:02:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:09,601 INFO L482 AbstractCegarLoop]: Abstraction has 2891 states and 7493 transitions. [2021-06-05 20:02:09,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 7493 transitions. [2021-06-05 20:02:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:09,603 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:09,603 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:09,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 20:02:09,603 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:09,604 INFO L82 PathProgramCache]: Analyzing trace with hash -901152320, now seen corresponding path program 35 times [2021-06-05 20:02:09,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:09,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553829862] [2021-06-05 20:02:09,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:09,853 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 20:02:09,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:09,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553829862] [2021-06-05 20:02:09,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553829862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:09,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:09,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:09,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117005315] [2021-06-05 20:02:09,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:09,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:09,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:09,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:09,855 INFO L87 Difference]: Start difference. First operand 2891 states and 7493 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:11,081 INFO L93 Difference]: Finished difference Result 4866 states and 12039 transitions. [2021-06-05 20:02:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:11,085 INFO L225 Difference]: With dead ends: 4866 [2021-06-05 20:02:11,085 INFO L226 Difference]: Without dead ends: 4866 [2021-06-05 20:02:11,086 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1015.2ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2021-06-05 20:02:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 2880. [2021-06-05 20:02:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2878 states have (on average 2.592077831827658) internal successors, (7460), 2879 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 7460 transitions. [2021-06-05 20:02:11,117 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 7460 transitions. Word has length 105 [2021-06-05 20:02:11,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:11,118 INFO L482 AbstractCegarLoop]: Abstraction has 2880 states and 7460 transitions. [2021-06-05 20:02:11,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 7460 transitions. [2021-06-05 20:02:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:11,120 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:11,120 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:11,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 20:02:11,120 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:11,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:11,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2103156056, now seen corresponding path program 36 times [2021-06-05 20:02:11,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:11,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678334631] [2021-06-05 20:02:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:11,387 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 20:02:11,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:11,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678334631] [2021-06-05 20:02:11,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678334631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:11,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:11,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:11,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448622183] [2021-06-05 20:02:11,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:11,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:11,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:11,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:11,389 INFO L87 Difference]: Start difference. First operand 2880 states and 7460 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:12,414 INFO L93 Difference]: Finished difference Result 4695 states and 11568 transitions. [2021-06-05 20:02:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:12,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:12,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:12,418 INFO L225 Difference]: With dead ends: 4695 [2021-06-05 20:02:12,419 INFO L226 Difference]: Without dead ends: 4695 [2021-06-05 20:02:12,419 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 854.6ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2021-06-05 20:02:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 2883. [2021-06-05 20:02:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2881 states have (on average 2.5921555015619577) internal successors, (7468), 2882 states have internal predecessors, (7468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 7468 transitions. [2021-06-05 20:02:12,452 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 7468 transitions. Word has length 105 [2021-06-05 20:02:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:12,452 INFO L482 AbstractCegarLoop]: Abstraction has 2883 states and 7468 transitions. [2021-06-05 20:02:12,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:12,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 7468 transitions. [2021-06-05 20:02:12,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:12,454 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:12,454 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:12,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 20:02:12,454 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:12,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:12,454 INFO L82 PathProgramCache]: Analyzing trace with hash -744201940, now seen corresponding path program 37 times [2021-06-05 20:02:12,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:12,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227964002] [2021-06-05 20:02:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:12,725 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 20:02:12,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:12,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227964002] [2021-06-05 20:02:12,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227964002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:12,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:12,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:12,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902811633] [2021-06-05 20:02:12,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:12,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:12,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:12,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:12,726 INFO L87 Difference]: Start difference. First operand 2883 states and 7468 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:13,848 INFO L93 Difference]: Finished difference Result 4584 states and 11319 transitions. [2021-06-05 20:02:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:13,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:13,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:13,853 INFO L225 Difference]: With dead ends: 4584 [2021-06-05 20:02:13,853 INFO L226 Difference]: Without dead ends: 4584 [2021-06-05 20:02:13,853 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 931.0ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-06-05 20:02:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 2869. [2021-06-05 20:02:13,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2867 states have (on average 2.590512731077782) internal successors, (7427), 2868 states have internal predecessors, (7427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 7427 transitions. [2021-06-05 20:02:13,889 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 7427 transitions. Word has length 105 [2021-06-05 20:02:13,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:13,890 INFO L482 AbstractCegarLoop]: Abstraction has 2869 states and 7427 transitions. [2021-06-05 20:02:13,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 7427 transitions. [2021-06-05 20:02:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:13,892 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:13,892 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:13,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 20:02:13,892 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1181505182, now seen corresponding path program 38 times [2021-06-05 20:02:13,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:13,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082220755] [2021-06-05 20:02:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:14,145 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 20:02:14,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:14,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082220755] [2021-06-05 20:02:14,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082220755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:14,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:14,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:14,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676672969] [2021-06-05 20:02:14,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:14,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:14,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:14,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:14,147 INFO L87 Difference]: Start difference. First operand 2869 states and 7427 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:14,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:14,976 INFO L93 Difference]: Finished difference Result 3786 states and 9295 transitions. [2021-06-05 20:02:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:14,977 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:14,980 INFO L225 Difference]: With dead ends: 3786 [2021-06-05 20:02:14,980 INFO L226 Difference]: Without dead ends: 3786 [2021-06-05 20:02:14,980 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 648.3ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:14,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2021-06-05 20:02:15,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 2848. [2021-06-05 20:02:15,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2846 states have (on average 2.590653548840478) internal successors, (7373), 2847 states have internal predecessors, (7373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 7373 transitions. [2021-06-05 20:02:15,020 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 7373 transitions. Word has length 105 [2021-06-05 20:02:15,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:15,021 INFO L482 AbstractCegarLoop]: Abstraction has 2848 states and 7373 transitions. [2021-06-05 20:02:15,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 7373 transitions. [2021-06-05 20:02:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:15,023 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:15,023 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:15,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 20:02:15,023 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:15,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:15,023 INFO L82 PathProgramCache]: Analyzing trace with hash 139173676, now seen corresponding path program 39 times [2021-06-05 20:02:15,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:15,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48430712] [2021-06-05 20:02:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:15,273 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 20:02:15,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:15,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48430712] [2021-06-05 20:02:15,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48430712] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:15,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:15,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:15,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467416617] [2021-06-05 20:02:15,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:15,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:15,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:15,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:15,274 INFO L87 Difference]: Start difference. First operand 2848 states and 7373 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:16,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:16,146 INFO L93 Difference]: Finished difference Result 3813 states and 9309 transitions. [2021-06-05 20:02:16,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:16,146 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:16,149 INFO L225 Difference]: With dead ends: 3813 [2021-06-05 20:02:16,149 INFO L226 Difference]: Without dead ends: 3813 [2021-06-05 20:02:16,150 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 665.4ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3813 states. [2021-06-05 20:02:16,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3813 to 2841. [2021-06-05 20:02:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 2.590700951039098) internal successors, (7355), 2840 states have internal predecessors, (7355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 7355 transitions. [2021-06-05 20:02:16,180 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 7355 transitions. Word has length 105 [2021-06-05 20:02:16,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:16,180 INFO L482 AbstractCegarLoop]: Abstraction has 2841 states and 7355 transitions. [2021-06-05 20:02:16,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 7355 transitions. [2021-06-05 20:02:16,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:16,182 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:16,182 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:16,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 20:02:16,182 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:16,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:16,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1586782976, now seen corresponding path program 40 times [2021-06-05 20:02:16,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:16,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203068282] [2021-06-05 20:02:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:16,440 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 20:02:16,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:16,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203068282] [2021-06-05 20:02:16,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203068282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:16,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:16,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:16,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749323454] [2021-06-05 20:02:16,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:16,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:16,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:16,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:16,441 INFO L87 Difference]: Start difference. First operand 2841 states and 7355 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:17,404 INFO L93 Difference]: Finished difference Result 3580 states and 8823 transitions. [2021-06-05 20:02:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:17,407 INFO L225 Difference]: With dead ends: 3580 [2021-06-05 20:02:17,407 INFO L226 Difference]: Without dead ends: 3580 [2021-06-05 20:02:17,407 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 746.8ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:17,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-06-05 20:02:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2723. [2021-06-05 20:02:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2721 states have (on average 2.606027195883866) internal successors, (7091), 2722 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7091 transitions. [2021-06-05 20:02:17,434 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7091 transitions. Word has length 105 [2021-06-05 20:02:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:17,434 INFO L482 AbstractCegarLoop]: Abstraction has 2723 states and 7091 transitions. [2021-06-05 20:02:17,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7091 transitions. [2021-06-05 20:02:17,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:17,436 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:17,436 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:17,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 20:02:17,436 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:17,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1795359232, now seen corresponding path program 41 times [2021-06-05 20:02:17,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:17,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992802519] [2021-06-05 20:02:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:17,696 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 20:02:17,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:17,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992802519] [2021-06-05 20:02:17,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992802519] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:17,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:17,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:17,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543657890] [2021-06-05 20:02:17,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:17,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:17,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:17,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:17,698 INFO L87 Difference]: Start difference. First operand 2723 states and 7091 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:18,521 INFO L93 Difference]: Finished difference Result 3197 states and 8060 transitions. [2021-06-05 20:02:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:18,524 INFO L225 Difference]: With dead ends: 3197 [2021-06-05 20:02:18,524 INFO L226 Difference]: Without dead ends: 3197 [2021-06-05 20:02:18,524 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 659.0ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-06-05 20:02:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2705. [2021-06-05 20:02:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2703 states have (on average 2.6067332593414725) internal successors, (7046), 2704 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 7046 transitions. [2021-06-05 20:02:18,549 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 7046 transitions. Word has length 105 [2021-06-05 20:02:18,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:18,550 INFO L482 AbstractCegarLoop]: Abstraction has 2705 states and 7046 transitions. [2021-06-05 20:02:18,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 7046 transitions. [2021-06-05 20:02:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:18,552 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:18,552 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:18,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 20:02:18,552 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:18,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:18,552 INFO L82 PathProgramCache]: Analyzing trace with hash 585486, now seen corresponding path program 42 times [2021-06-05 20:02:18,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:18,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593923117] [2021-06-05 20:02:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:18,812 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 20:02:18,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:18,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593923117] [2021-06-05 20:02:18,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593923117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:18,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:18,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:18,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396938280] [2021-06-05 20:02:18,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:18,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:18,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:18,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:18,814 INFO L87 Difference]: Start difference. First operand 2705 states and 7046 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:19,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:19,690 INFO L93 Difference]: Finished difference Result 3419 states and 8516 transitions. [2021-06-05 20:02:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:19,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:19,693 INFO L225 Difference]: With dead ends: 3419 [2021-06-05 20:02:19,693 INFO L226 Difference]: Without dead ends: 3419 [2021-06-05 20:02:19,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 679.4ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-06-05 20:02:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2707. [2021-06-05 20:02:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2705 states have (on average 2.6066543438077634) internal successors, (7051), 2706 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 7051 transitions. [2021-06-05 20:02:19,718 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 7051 transitions. Word has length 105 [2021-06-05 20:02:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:19,718 INFO L482 AbstractCegarLoop]: Abstraction has 2707 states and 7051 transitions. [2021-06-05 20:02:19,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 7051 transitions. [2021-06-05 20:02:19,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:19,720 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:19,720 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:19,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 20:02:19,721 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:19,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:19,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1986945210, now seen corresponding path program 43 times [2021-06-05 20:02:19,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:19,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337578298] [2021-06-05 20:02:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:19,993 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 20:02:19,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:19,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337578298] [2021-06-05 20:02:19,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337578298] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:19,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:19,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:19,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295520041] [2021-06-05 20:02:19,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:19,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:19,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:19,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:19,994 INFO L87 Difference]: Start difference. First operand 2707 states and 7051 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:20,922 INFO L93 Difference]: Finished difference Result 3502 states and 8675 transitions. [2021-06-05 20:02:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:20,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:20,925 INFO L225 Difference]: With dead ends: 3502 [2021-06-05 20:02:20,925 INFO L226 Difference]: Without dead ends: 3502 [2021-06-05 20:02:20,926 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 739.3ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:20,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-06-05 20:02:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2699. [2021-06-05 20:02:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2697 states have (on average 2.60697070819429) internal successors, (7031), 2698 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 7031 transitions. [2021-06-05 20:02:20,952 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 7031 transitions. Word has length 105 [2021-06-05 20:02:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:20,952 INFO L482 AbstractCegarLoop]: Abstraction has 2699 states and 7031 transitions. [2021-06-05 20:02:20,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 7031 transitions. [2021-06-05 20:02:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:20,954 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:20,954 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:20,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 20:02:20,954 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:20,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1605592104, now seen corresponding path program 44 times [2021-06-05 20:02:20,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:20,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489932397] [2021-06-05 20:02:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:21,209 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 20:02:21,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:21,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489932397] [2021-06-05 20:02:21,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489932397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:21,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:21,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:21,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254127927] [2021-06-05 20:02:21,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:21,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:21,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:21,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:21,211 INFO L87 Difference]: Start difference. First operand 2699 states and 7031 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:22,020 INFO L93 Difference]: Finished difference Result 3084 states and 7796 transitions. [2021-06-05 20:02:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:22,023 INFO L225 Difference]: With dead ends: 3084 [2021-06-05 20:02:22,023 INFO L226 Difference]: Without dead ends: 3084 [2021-06-05 20:02:22,023 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 629.3ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-06-05 20:02:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2681. [2021-06-05 20:02:22,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 2.6076894363568495) internal successors, (6986), 2680 states have internal predecessors, (6986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6986 transitions. [2021-06-05 20:02:22,045 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6986 transitions. Word has length 105 [2021-06-05 20:02:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:22,045 INFO L482 AbstractCegarLoop]: Abstraction has 2681 states and 6986 transitions. [2021-06-05 20:02:22,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6986 transitions. [2021-06-05 20:02:22,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:22,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:22,047 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:22,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 20:02:22,048 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:22,048 INFO L82 PathProgramCache]: Analyzing trace with hash -291468002, now seen corresponding path program 45 times [2021-06-05 20:02:22,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:22,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727186138] [2021-06-05 20:02:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:22,310 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 20:02:22,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:22,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727186138] [2021-06-05 20:02:22,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727186138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:22,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:22,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:22,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466568530] [2021-06-05 20:02:22,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:22,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:22,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:22,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:22,311 INFO L87 Difference]: Start difference. First operand 2681 states and 6986 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:23,120 INFO L93 Difference]: Finished difference Result 3297 states and 8221 transitions. [2021-06-05 20:02:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:23,123 INFO L225 Difference]: With dead ends: 3297 [2021-06-05 20:02:23,123 INFO L226 Difference]: Without dead ends: 3297 [2021-06-05 20:02:23,123 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 639.2ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-06-05 20:02:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2675. [2021-06-05 20:02:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 2.607931163486719) internal successors, (6971), 2674 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 6971 transitions. [2021-06-05 20:02:23,146 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 6971 transitions. Word has length 105 [2021-06-05 20:02:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:23,146 INFO L482 AbstractCegarLoop]: Abstraction has 2675 states and 6971 transitions. [2021-06-05 20:02:23,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 6971 transitions. [2021-06-05 20:02:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-06-05 20:02:23,148 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:23,148 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:23,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 20:02:23,149 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:23,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:23,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1694891722, now seen corresponding path program 46 times [2021-06-05 20:02:23,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:23,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301992278] [2021-06-05 20:02:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:23,422 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 20:02:23,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:23,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301992278] [2021-06-05 20:02:23,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301992278] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:23,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:23,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:23,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690151035] [2021-06-05 20:02:23,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:23,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:23,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:23,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:23,423 INFO L87 Difference]: Start difference. First operand 2675 states and 6971 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:24,330 INFO L93 Difference]: Finished difference Result 3154 states and 7933 transitions. [2021-06-05 20:02:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:24,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-06-05 20:02:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:24,333 INFO L225 Difference]: With dead ends: 3154 [2021-06-05 20:02:24,333 INFO L226 Difference]: Without dead ends: 3154 [2021-06-05 20:02:24,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 715.5ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:24,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2021-06-05 20:02:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 2564. [2021-06-05 20:02:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6328521264143583) internal successors, (6748), 2563 states have internal predecessors, (6748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6748 transitions. [2021-06-05 20:02:24,355 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6748 transitions. Word has length 105 [2021-06-05 20:02:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:24,356 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6748 transitions. [2021-06-05 20:02:24,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6748 transitions. [2021-06-05 20:02:24,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:24,357 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:24,358 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:24,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 20:02:24,358 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:24,358 INFO L82 PathProgramCache]: Analyzing trace with hash -976559947, now seen corresponding path program 1 times [2021-06-05 20:02:24,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:24,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883051646] [2021-06-05 20:02:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:24,918 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 20:02:24,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:24,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883051646] [2021-06-05 20:02:24,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883051646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:24,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:24,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:02:24,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150673335] [2021-06-05 20:02:24,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:02:24,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:02:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:02:24,919 INFO L87 Difference]: Start difference. First operand 2564 states and 6748 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:27,179 INFO L93 Difference]: Finished difference Result 3806 states and 9659 transitions. [2021-06-05 20:02:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:02:27,180 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-06-05 20:02:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:27,184 INFO L225 Difference]: With dead ends: 3806 [2021-06-05 20:02:27,184 INFO L226 Difference]: Without dead ends: 3649 [2021-06-05 20:02:27,184 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1943.2ms TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2021-06-05 20:02:27,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2021-06-05 20:02:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 2708. [2021-06-05 20:02:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2707 states have (on average 2.621352050240118) internal successors, (7096), 2707 states have internal predecessors, (7096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 7096 transitions. [2021-06-05 20:02:27,211 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 7096 transitions. Word has length 111 [2021-06-05 20:02:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:27,211 INFO L482 AbstractCegarLoop]: Abstraction has 2708 states and 7096 transitions. [2021-06-05 20:02:27,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:27,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 7096 transitions. [2021-06-05 20:02:27,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:27,213 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:27,213 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:27,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 20:02:27,214 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:27,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1141043849, now seen corresponding path program 2 times [2021-06-05 20:02:27,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:27,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600583341] [2021-06-05 20:02:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:27,763 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 20:02:27,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:27,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600583341] [2021-06-05 20:02:27,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600583341] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:27,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:27,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:02:27,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739158177] [2021-06-05 20:02:27,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:02:27,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:27,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:02:27,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:02:27,765 INFO L87 Difference]: Start difference. First operand 2708 states and 7096 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:30,149 INFO L93 Difference]: Finished difference Result 3704 states and 9384 transitions. [2021-06-05 20:02:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:02:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-06-05 20:02:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:30,154 INFO L225 Difference]: With dead ends: 3704 [2021-06-05 20:02:30,154 INFO L226 Difference]: Without dead ends: 3613 [2021-06-05 20:02:30,154 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2128.6ms TimeCoverageRelationStatistics Valid=450, Invalid=2100, Unknown=0, NotChecked=0, Total=2550 [2021-06-05 20:02:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2021-06-05 20:02:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 2672. [2021-06-05 20:02:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 2.6207412953949834) internal successors, (7000), 2671 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:30,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7000 transitions. [2021-06-05 20:02:30,181 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7000 transitions. Word has length 111 [2021-06-05 20:02:30,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:30,181 INFO L482 AbstractCegarLoop]: Abstraction has 2672 states and 7000 transitions. [2021-06-05 20:02:30,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:30,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7000 transitions. [2021-06-05 20:02:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:30,183 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:30,183 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:30,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 20:02:30,183 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:30,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:30,183 INFO L82 PathProgramCache]: Analyzing trace with hash -659116491, now seen corresponding path program 3 times [2021-06-05 20:02:30,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:30,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924468251] [2021-06-05 20:02:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:30,717 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 20:02:30,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:30,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924468251] [2021-06-05 20:02:30,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924468251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:30,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:30,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:02:30,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282578853] [2021-06-05 20:02:30,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:02:30,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:30,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:02:30,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:02:30,719 INFO L87 Difference]: Start difference. First operand 2672 states and 7000 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,190 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2021-06-05 20:02:32,354 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2021-06-05 20:02:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:32,969 INFO L93 Difference]: Finished difference Result 3643 states and 9251 transitions. [2021-06-05 20:02:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 20:02:32,969 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-06-05 20:02:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:32,972 INFO L225 Difference]: With dead ends: 3643 [2021-06-05 20:02:32,972 INFO L226 Difference]: Without dead ends: 3504 [2021-06-05 20:02:32,973 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1962.7ms TimeCoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 20:02:32,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2021-06-05 20:02:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2600. [2021-06-05 20:02:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2599 states have (on average 2.6194690265486726) internal successors, (6808), 2599 states have internal predecessors, (6808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 6808 transitions. [2021-06-05 20:02:32,997 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 6808 transitions. Word has length 111 [2021-06-05 20:02:32,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:32,997 INFO L482 AbstractCegarLoop]: Abstraction has 2600 states and 6808 transitions. [2021-06-05 20:02:32,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 6808 transitions. [2021-06-05 20:02:32,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:32,999 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:33,000 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:33,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 20:02:33,000 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:33,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:33,000 INFO L82 PathProgramCache]: Analyzing trace with hash 198046965, now seen corresponding path program 4 times [2021-06-05 20:02:33,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:33,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452304790] [2021-06-05 20:02:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:33,525 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 20:02:33,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:33,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452304790] [2021-06-05 20:02:33,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452304790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:33,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:33,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:02:33,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654127722] [2021-06-05 20:02:33,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:02:33,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:33,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:02:33,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:02:33,526 INFO L87 Difference]: Start difference. First operand 2600 states and 6808 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:35,654 INFO L93 Difference]: Finished difference Result 3577 states and 9072 transitions. [2021-06-05 20:02:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 20:02:35,655 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-06-05 20:02:35,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:35,658 INFO L225 Difference]: With dead ends: 3577 [2021-06-05 20:02:35,658 INFO L226 Difference]: Without dead ends: 3468 [2021-06-05 20:02:35,659 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1875.6ms TimeCoverageRelationStatistics Valid=405, Invalid=1947, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 20:02:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2021-06-05 20:02:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 2564. [2021-06-05 20:02:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2563 states have (on average 2.6188060866172456) internal successors, (6712), 2563 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6712 transitions. [2021-06-05 20:02:35,683 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6712 transitions. Word has length 111 [2021-06-05 20:02:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:35,684 INFO L482 AbstractCegarLoop]: Abstraction has 2564 states and 6712 transitions. [2021-06-05 20:02:35,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 26 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6712 transitions. [2021-06-05 20:02:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:35,686 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:35,686 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:35,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 20:02:35,686 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:35,686 INFO L82 PathProgramCache]: Analyzing trace with hash -699849197, now seen corresponding path program 5 times [2021-06-05 20:02:35,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:35,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400149305] [2021-06-05 20:02:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:36,298 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 20:02:36,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:36,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400149305] [2021-06-05 20:02:36,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400149305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:36,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:36,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:02:36,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187766755] [2021-06-05 20:02:36,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:02:36,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:36,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:02:36,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:02:36,300 INFO L87 Difference]: Start difference. First operand 2564 states and 6712 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:38,579 INFO L93 Difference]: Finished difference Result 3671 states and 9215 transitions. [2021-06-05 20:02:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:02:38,580 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-06-05 20:02:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:38,584 INFO L225 Difference]: With dead ends: 3671 [2021-06-05 20:02:38,584 INFO L226 Difference]: Without dead ends: 3472 [2021-06-05 20:02:38,584 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2034.8ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:02:38,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-06-05 20:02:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2456. [2021-06-05 20:02:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 2455 states have (on average 2.616700610997963) internal successors, (6424), 2455 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 6424 transitions. [2021-06-05 20:02:38,610 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 6424 transitions. Word has length 111 [2021-06-05 20:02:38,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:38,610 INFO L482 AbstractCegarLoop]: Abstraction has 2456 states and 6424 transitions. [2021-06-05 20:02:38,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 6424 transitions. [2021-06-05 20:02:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-06-05 20:02:38,612 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:38,612 INFO L554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:38,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 20:02:38,612 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:38,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:38,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1566479499, now seen corresponding path program 6 times [2021-06-05 20:02:38,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:38,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197535857] [2021-06-05 20:02:38,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 20:02:38,629 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 20:02:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 20:02:38,648 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 20:02:38,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 20:02:38,688 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 20:02:38,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 20:02:38,691 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:02:38,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:02:38 BasicIcfg [2021-06-05 20:02:38,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:02:38,766 INFO L168 Benchmark]: Toolchain (without parser) took 86568.32 ms. Allocated memory was 358.6 MB in the beginning and 1.2 GB in the end (delta: 796.9 MB). Free memory was 318.6 MB in the beginning and 680.5 MB in the end (delta: -361.9 MB). Peak memory consumption was 436.6 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,766 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 358.6 MB. Free memory was 338.7 MB in the beginning and 338.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.46 ms. Allocated memory is still 358.6 MB. Free memory was 318.4 MB in the beginning and 308.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 358.6 MB. Free memory was 308.1 MB in the beginning and 304.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L168 Benchmark]: Boogie Preprocessor took 33.14 ms. Allocated memory is still 358.6 MB. Free memory was 304.9 MB in the beginning and 301.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L168 Benchmark]: RCFGBuilder took 494.87 ms. Allocated memory is still 358.6 MB. Free memory was 301.8 MB in the beginning and 252.5 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L168 Benchmark]: TraceAbstraction took 85205.22 ms. Allocated memory was 358.6 MB in the beginning and 1.2 GB in the end (delta: 796.9 MB). Free memory was 252.5 MB in the beginning and 680.5 MB in the end (delta: -428.0 MB). Peak memory consumption was 369.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:02:38,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 358.6 MB. Free memory was 338.7 MB in the beginning and 338.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 776.46 ms. Allocated memory is still 358.6 MB. Free memory was 318.4 MB in the beginning and 308.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.10 ms. Allocated memory is still 358.6 MB. Free memory was 308.1 MB in the beginning and 304.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.14 ms. Allocated memory is still 358.6 MB. Free memory was 304.9 MB in the beginning and 301.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 494.87 ms. Allocated memory is still 358.6 MB. Free memory was 301.8 MB in the beginning and 252.5 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 85205.22 ms. Allocated memory was 358.6 MB in the beginning and 1.2 GB in the end (delta: 796.9 MB). Free memory was 252.5 MB in the beginning and 680.5 MB in the end (delta: -428.0 MB). Peak memory consumption was 369.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1737] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 2 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 85025.7ms, OverallIterations: 58, TraceHistogramMax: 1, EmptinessCheckTime: 191.1ms, AutomataDifference: 64776.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 153.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11066 SDtfs, 33047 SDslu, 74961 SDs, 0 SdLazy, 36278 SolverSat, 2818 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16758.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2077 GetRequests, 184 SyntacticMatches, 63 SemanticMatches, 1830 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10168 ImplicationChecksByTransitivity, 52788.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4325occurred in iteration=4, InterpolantAutomatonStates: 1216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2519.4ms AutomataMinimizationTime, 57 MinimizatonAttempts, 72347 StatesRemovedByMinimization, 56 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 107.7ms SsaConstructionTime, 801.1ms SatisfiabilityAnalysisTime, 15858.2ms InterpolantComputationTime, 5883 NumberOfCodeBlocks, 5883 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 5715 ConstructedInterpolants, 0 QuantifiedInterpolants, 78358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 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 proved your program to be incorrect! Received shutdown request...