/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 17:45:57,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 17:45:57,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 17:45:57,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-12 17:45:57,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 17:45:57,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 17:45:57,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 17:45:57,364 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 [2021-08-12 17:45:57,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 17:45:57,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 17:45:57,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-12 17:45:57,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-12 17:45:57,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 17:45:57,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 17:45:57,409 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 17:45:57,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 17:45:57,409 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 17:45:57,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 17:45:57,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 17:45:57,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 17:45:57,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 17:45:57,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 17:45:57,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 17:45:57,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 17:45:57,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 17:45:57,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 17:45:57,413 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 17:45:57,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 17:45:57,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 17:45:57,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 17:45:57,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 17:45:57,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 17:45:57,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 17:45:57,750 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 17:45:57,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-08-12 17:45:57,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f88d796a/dc19e52cdbb9469fa6f7d892b2ac3a13/FLAGf05c70dad [2021-08-12 17:45:58,436 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 17:45:58,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-08-12 17:45:58,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f88d796a/dc19e52cdbb9469fa6f7d892b2ac3a13/FLAGf05c70dad [2021-08-12 17:45:58,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f88d796a/dc19e52cdbb9469fa6f7d892b2ac3a13 [2021-08-12 17:45:58,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 17:45:58,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 17:45:58,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 17:45:58,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 17:45:58,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 17:45:58,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:45:58" (1/1) ... [2021-08-12 17:45:58,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f8b400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:58, skipping insertion in model container [2021-08-12 17:45:58,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 05:45:58" (1/1) ... [2021-08-12 17:45:58,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 17:45:58,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 17:45:58,989 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 17:45:59,511 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-08-12 17:45:59,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:45:59,554 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 17:45:59,565 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-12 17:45:59,598 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-08-12 17:45:59,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 17:45:59,850 INFO L208 MainTranslator]: Completed translation [2021-08-12 17:45:59,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59 WrapperNode [2021-08-12 17:45:59,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 17:45:59,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 17:45:59,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 17:45:59,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 17:45:59,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 17:45:59,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 17:45:59,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 17:45:59,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 17:45:59,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (1/1) ... [2021-08-12 17:45:59,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 17:45:59,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 17:45:59,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 17:45:59,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 17:45:59,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (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 [2021-08-12 17:46:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 17:46:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 17:46:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 17:46:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-08-12 17:46:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 17:46:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 17:46:00,010 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 17:46:00,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 17:46:00,512 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-08-12 17:46:00,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:46:00 BoogieIcfgContainer [2021-08-12 17:46:00,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 17:46:00,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 17:46:00,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 17:46:00,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 17:46:00,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 05:45:58" (1/3) ... [2021-08-12 17:46:00,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44927113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:46:00, skipping insertion in model container [2021-08-12 17:46:00,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 05:45:59" (2/3) ... [2021-08-12 17:46:00,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44927113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 05:46:00, skipping insertion in model container [2021-08-12 17:46:00,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 05:46:00" (3/3) ... [2021-08-12 17:46:00,522 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-08-12 17:46:00,528 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 17:46:00,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-12 17:46:00,529 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 17:46:00,570 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,571 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,572 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,572 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,572 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,572 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,572 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,573 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,573 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,573 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,573 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,574 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,574 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,574 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,574 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,576 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,576 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,576 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,576 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,576 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,577 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,578 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,578 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,579 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,580 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,582 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,582 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,582 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,582 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,582 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,592 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,593 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,593 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,593 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,599 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,599 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,599 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,601 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,605 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 17:46:00,623 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-12 17:46:00,644 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-12 17:46:00,663 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 17:46:00,663 INFO L379 AbstractCegarLoop]: Hoare is true [2021-08-12 17:46:00,664 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 17:46:00,664 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 17:46:00,664 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 17:46:00,664 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 17:46:00,665 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 17:46:00,665 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 17:46:00,683 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 143 transitions, 308 flow [2021-08-12 17:46:00,934 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-12 17:46:00,970 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:00,970 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:00,971 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:00,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash 918719424, now seen corresponding path program 1 times [2021-08-12 17:46:00,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:00,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967438626] [2021-08-12 17:46:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:01,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:01,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967438626] [2021-08-12 17:46:01,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967438626] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:01,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:01,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 17:46:01,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516846344] [2021-08-12 17:46:01,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 17:46:01,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 17:46:01,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 17:46:01,464 INFO L87 Difference]: Start difference. First operand has 5115 states, 5106 states have (on average 2.781629455542499) internal successors, (14203), 5114 states have internal predecessors, (14203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:02,155 INFO L93 Difference]: Finished difference Result 9180 states and 25672 transitions. [2021-08-12 17:46:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-12 17:46:02,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-08-12 17:46:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:02,215 INFO L225 Difference]: With dead ends: 9180 [2021-08-12 17:46:02,216 INFO L226 Difference]: Without dead ends: 5725 [2021-08-12 17:46:02,229 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 96.3ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-08-12 17:46:02,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2021-08-12 17:46:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4445. [2021-08-12 17:46:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4440 states have (on average 2.713963963963964) internal successors, (12050), 4444 states have internal predecessors, (12050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:02,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 12050 transitions. [2021-08-12 17:46:02,598 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 12050 transitions. Word has length 48 [2021-08-12 17:46:02,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:02,599 INFO L482 AbstractCegarLoop]: Abstraction has 4445 states and 12050 transitions. [2021-08-12 17:46:02,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 12050 transitions. [2021-08-12 17:46:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-12 17:46:02,607 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:02,607 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:02,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 17:46:02,608 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:02,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1316640901, now seen corresponding path program 1 times [2021-08-12 17:46:02,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:02,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312345419] [2021-08-12 17:46:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:02,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:02,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312345419] [2021-08-12 17:46:02,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312345419] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:02,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:02,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 17:46:02,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583199197] [2021-08-12 17:46:02,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 17:46:02,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:02,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 17:46:02,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 17:46:02,729 INFO L87 Difference]: Start difference. First operand 4445 states and 12050 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:03,213 INFO L93 Difference]: Finished difference Result 6405 states and 17329 transitions. [2021-08-12 17:46:03,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 17:46:03,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-12 17:46:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:03,248 INFO L225 Difference]: With dead ends: 6405 [2021-08-12 17:46:03,248 INFO L226 Difference]: Without dead ends: 5231 [2021-08-12 17:46:03,255 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-12 17:46:03,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2021-08-12 17:46:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5061. [2021-08-12 17:46:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5061 states, 5057 states have (on average 2.716630413288511) internal successors, (13738), 5060 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5061 states to 5061 states and 13738 transitions. [2021-08-12 17:46:03,502 INFO L78 Accepts]: Start accepts. Automaton has 5061 states and 13738 transitions. Word has length 54 [2021-08-12 17:46:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:03,502 INFO L482 AbstractCegarLoop]: Abstraction has 5061 states and 13738 transitions. [2021-08-12 17:46:03,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5061 states and 13738 transitions. [2021-08-12 17:46:03,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-12 17:46:03,512 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:03,513 INFO L550 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] [2021-08-12 17:46:03,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 17:46:03,513 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:03,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:03,513 INFO L82 PathProgramCache]: Analyzing trace with hash 612799479, now seen corresponding path program 1 times [2021-08-12 17:46:03,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:03,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585898931] [2021-08-12 17:46:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:03,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:03,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:03,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585898931] [2021-08-12 17:46:03,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585898931] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:03,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:03,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 17:46:03,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666550507] [2021-08-12 17:46:03,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-12 17:46:03,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:03,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-12 17:46:03,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-12 17:46:03,643 INFO L87 Difference]: Start difference. First operand 5061 states and 13738 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:03,784 INFO L93 Difference]: Finished difference Result 5061 states and 13738 transitions. [2021-08-12 17:46:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 17:46:03,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-08-12 17:46:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:03,811 INFO L225 Difference]: With dead ends: 5061 [2021-08-12 17:46:03,811 INFO L226 Difference]: Without dead ends: 1928 [2021-08-12 17:46:03,818 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-12 17:46:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-08-12 17:46:03,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2021-08-12 17:46:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1926 states have (on average 2.6209761163032192) internal successors, (5048), 1927 states have internal predecessors, (5048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5048 transitions. [2021-08-12 17:46:03,891 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5048 transitions. Word has length 66 [2021-08-12 17:46:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:03,893 INFO L482 AbstractCegarLoop]: Abstraction has 1928 states and 5048 transitions. [2021-08-12 17:46:03,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:03,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5048 transitions. [2021-08-12 17:46:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:03,899 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:03,900 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:03,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 17:46:03,900 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:03,901 INFO L82 PathProgramCache]: Analyzing trace with hash -240776193, now seen corresponding path program 1 times [2021-08-12 17:46:03,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:03,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474350102] [2021-08-12 17:46:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:04,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:04,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474350102] [2021-08-12 17:46:04,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474350102] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:04,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:04,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-12 17:46:04,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373790384] [2021-08-12 17:46:04,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-08-12 17:46:04,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:04,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-12 17:46:04,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2021-08-12 17:46:04,983 INFO L87 Difference]: Start difference. First operand 1928 states and 5048 transitions. Second operand has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:08,863 INFO L93 Difference]: Finished difference Result 2995 states and 7749 transitions. [2021-08-12 17:46:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-12 17:46:08,864 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:08,881 INFO L225 Difference]: With dead ends: 2995 [2021-08-12 17:46:08,882 INFO L226 Difference]: Without dead ends: 2945 [2021-08-12 17:46:08,884 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2674.1ms TimeCoverageRelationStatistics Valid=791, Invalid=3115, Unknown=0, NotChecked=0, Total=3906 [2021-08-12 17:46:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-08-12 17:46:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2870. [2021-08-12 17:46:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2868 states have (on average 2.6359832635983262) internal successors, (7560), 2869 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 7560 transitions. [2021-08-12 17:46:09,015 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 7560 transitions. Word has length 94 [2021-08-12 17:46:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:09,016 INFO L482 AbstractCegarLoop]: Abstraction has 2870 states and 7560 transitions. [2021-08-12 17:46:09,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 7560 transitions. [2021-08-12 17:46:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:09,024 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:09,025 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:09,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 17:46:09,025 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:09,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1458799697, now seen corresponding path program 1 times [2021-08-12 17:46:09,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:09,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600126254] [2021-08-12 17:46:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:09,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:09,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600126254] [2021-08-12 17:46:09,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600126254] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:09,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:09,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:46:09,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268345440] [2021-08-12 17:46:09,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:46:09,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:09,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:46:09,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:46:09,748 INFO L87 Difference]: Start difference. First operand 2870 states and 7560 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:12,141 INFO L93 Difference]: Finished difference Result 4816 states and 12413 transitions. [2021-08-12 17:46:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:46:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:12,165 INFO L225 Difference]: With dead ends: 4816 [2021-08-12 17:46:12,165 INFO L226 Difference]: Without dead ends: 4814 [2021-08-12 17:46:12,167 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1293.8ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:46:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2021-08-12 17:46:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 3367. [2021-08-12 17:46:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3365 states have (on average 2.5895988112927193) internal successors, (8714), 3366 states have internal predecessors, (8714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 8714 transitions. [2021-08-12 17:46:12,464 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 8714 transitions. Word has length 94 [2021-08-12 17:46:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:12,466 INFO L482 AbstractCegarLoop]: Abstraction has 3367 states and 8714 transitions. [2021-08-12 17:46:12,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 8714 transitions. [2021-08-12 17:46:12,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:12,478 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:12,478 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:12,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 17:46:12,478 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:12,479 INFO L82 PathProgramCache]: Analyzing trace with hash 608810679, now seen corresponding path program 2 times [2021-08-12 17:46:12,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:12,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406582179] [2021-08-12 17:46:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:13,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:13,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406582179] [2021-08-12 17:46:13,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406582179] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:13,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:13,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:46:13,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26439638] [2021-08-12 17:46:13,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:46:13,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:13,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:46:13,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:46:13,471 INFO L87 Difference]: Start difference. First operand 3367 states and 8714 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:14,142 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-08-12 17:46:14,295 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:14,506 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:14,711 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:46:14,876 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:15,067 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:46:15,218 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:46:15,482 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:46:15,736 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:46:16,003 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:46:16,201 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:46:16,465 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-08-12 17:46:17,218 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:17,573 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:17,853 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:18,251 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:46:18,448 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:18,789 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:46:19,765 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:46:19,925 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-08-12 17:46:20,141 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-08-12 17:46:20,273 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:20,526 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-08-12 17:46:20,669 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:20,867 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:46:21,087 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-08-12 17:46:21,216 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-08-12 17:46:21,444 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-08-12 17:46:21,570 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-08-12 17:46:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:21,579 INFO L93 Difference]: Finished difference Result 7163 states and 17976 transitions. [2021-08-12 17:46:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-12 17:46:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:21,602 INFO L225 Difference]: With dead ends: 7163 [2021-08-12 17:46:21,602 INFO L226 Difference]: Without dead ends: 7161 [2021-08-12 17:46:21,605 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 6132.2ms TimeCoverageRelationStatistics Valid=1020, Invalid=2640, Unknown=0, NotChecked=0, Total=3660 [2021-08-12 17:46:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7161 states. [2021-08-12 17:46:22,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7161 to 4645. [2021-08-12 17:46:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4643 states have (on average 2.626319190178764) internal successors, (12194), 4644 states have internal predecessors, (12194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 12194 transitions. [2021-08-12 17:46:22,090 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 12194 transitions. Word has length 94 [2021-08-12 17:46:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:22,091 INFO L482 AbstractCegarLoop]: Abstraction has 4645 states and 12194 transitions. [2021-08-12 17:46:22,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 12194 transitions. [2021-08-12 17:46:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:22,101 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:22,101 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:22,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 17:46:22,102 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:22,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1809812065, now seen corresponding path program 3 times [2021-08-12 17:46:22,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:22,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257296121] [2021-08-12 17:46:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:22,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:22,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257296121] [2021-08-12 17:46:22,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257296121] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:22,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:22,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:46:22,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353171806] [2021-08-12 17:46:22,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:46:22,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:22,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:46:22,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:46:22,907 INFO L87 Difference]: Start difference. First operand 4645 states and 12194 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:23,672 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:23,886 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:24,069 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:46:24,236 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:24,419 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:46:24,569 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:46:24,796 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:46:25,012 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:46:25,252 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:46:25,950 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:26,327 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:26,618 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:26,894 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:46:27,173 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:46:27,369 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:27,668 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:46:28,860 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-08-12 17:46:29,185 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-08-12 17:46:29,316 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:29,522 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-08-12 17:46:29,657 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:29,867 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:46:30,067 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:46:30,201 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-08-12 17:46:30,418 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:30,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:30,551 INFO L93 Difference]: Finished difference Result 7723 states and 19135 transitions. [2021-08-12 17:46:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-12 17:46:30,551 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:30,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:30,572 INFO L225 Difference]: With dead ends: 7723 [2021-08-12 17:46:30,572 INFO L226 Difference]: Without dead ends: 7721 [2021-08-12 17:46:30,575 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 5508.2ms TimeCoverageRelationStatistics Valid=968, Invalid=2572, Unknown=0, NotChecked=0, Total=3540 [2021-08-12 17:46:30,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2021-08-12 17:46:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 4649. [2021-08-12 17:46:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4649 states, 4647 states have (on average 2.6262104583602324) internal successors, (12204), 4648 states have internal predecessors, (12204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4649 states to 4649 states and 12204 transitions. [2021-08-12 17:46:31,071 INFO L78 Accepts]: Start accepts. Automaton has 4649 states and 12204 transitions. Word has length 94 [2021-08-12 17:46:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:31,071 INFO L482 AbstractCegarLoop]: Abstraction has 4649 states and 12204 transitions. [2021-08-12 17:46:31,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4649 states and 12204 transitions. [2021-08-12 17:46:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:31,082 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:31,082 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:31,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 17:46:31,083 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:31,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:31,083 INFO L82 PathProgramCache]: Analyzing trace with hash -184622153, now seen corresponding path program 4 times [2021-08-12 17:46:31,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:31,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95471996] [2021-08-12 17:46:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:31,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:31,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95471996] [2021-08-12 17:46:31,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95471996] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:31,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:31,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:46:31,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749968349] [2021-08-12 17:46:31,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:46:31,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:31,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:46:31,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:46:31,960 INFO L87 Difference]: Start difference. First operand 4649 states and 12204 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:32,622 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-08-12 17:46:32,777 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:32,987 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:33,163 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:46:33,300 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:33,479 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:46:33,628 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:46:33,832 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:46:34,642 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:34,977 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:46:35,138 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:35,457 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:35,733 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:46:36,028 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:46:36,225 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:36,540 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:46:37,967 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:46:38,107 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-08-12 17:46:38,285 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:46:38,414 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:38,608 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-08-12 17:46:38,744 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:38,905 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:46:39,086 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-08-12 17:46:39,213 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-08-12 17:46:39,424 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:39,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:39,557 INFO L93 Difference]: Finished difference Result 7885 states and 19507 transitions. [2021-08-12 17:46:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-12 17:46:39,557 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:39,575 INFO L225 Difference]: With dead ends: 7885 [2021-08-12 17:46:39,575 INFO L226 Difference]: Without dead ends: 7883 [2021-08-12 17:46:39,578 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 5277.5ms TimeCoverageRelationStatistics Valid=918, Invalid=2504, Unknown=0, NotChecked=0, Total=3422 [2021-08-12 17:46:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7883 states. [2021-08-12 17:46:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7883 to 4657. [2021-08-12 17:46:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4657 states, 4655 states have (on average 2.6259935553168634) internal successors, (12224), 4656 states have internal predecessors, (12224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4657 states to 4657 states and 12224 transitions. [2021-08-12 17:46:40,015 INFO L78 Accepts]: Start accepts. Automaton has 4657 states and 12224 transitions. Word has length 94 [2021-08-12 17:46:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:40,015 INFO L482 AbstractCegarLoop]: Abstraction has 4657 states and 12224 transitions. [2021-08-12 17:46:40,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4657 states and 12224 transitions. [2021-08-12 17:46:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:40,025 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:40,025 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:40,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 17:46:40,026 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:40,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:40,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1732609481, now seen corresponding path program 5 times [2021-08-12 17:46:40,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:40,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678884509] [2021-08-12 17:46:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:40,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:40,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678884509] [2021-08-12 17:46:40,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678884509] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:40,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:40,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:46:40,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992515688] [2021-08-12 17:46:40,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:46:40,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:40,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:46:40,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:46:40,821 INFO L87 Difference]: Start difference. First operand 4657 states and 12224 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:41,505 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-08-12 17:46:41,643 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:41,833 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:41,989 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:46:42,123 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:42,299 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:46:43,059 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:46:43,201 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:43,546 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:46:43,734 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:44,010 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:44,293 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:46:44,626 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:46:44,817 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:45,136 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:46:46,647 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:46:46,932 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:46:47,060 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:47,229 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-08-12 17:46:47,395 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:47,540 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:46:47,704 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-08-12 17:46:47,830 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-08-12 17:46:47,997 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:48,130 INFO L93 Difference]: Finished difference Result 8047 states and 19879 transitions. [2021-08-12 17:46:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-12 17:46:48,131 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:48,148 INFO L225 Difference]: With dead ends: 8047 [2021-08-12 17:46:48,149 INFO L226 Difference]: Without dead ends: 8045 [2021-08-12 17:46:48,151 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 4947.1ms TimeCoverageRelationStatistics Valid=870, Invalid=2436, Unknown=0, NotChecked=0, Total=3306 [2021-08-12 17:46:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8045 states. [2021-08-12 17:46:48,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8045 to 4661. [2021-08-12 17:46:48,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4661 states, 4659 states have (on average 2.625885383129427) internal successors, (12234), 4660 states have internal predecessors, (12234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 12234 transitions. [2021-08-12 17:46:48,708 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 12234 transitions. Word has length 94 [2021-08-12 17:46:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:48,708 INFO L482 AbstractCegarLoop]: Abstraction has 4661 states and 12234 transitions. [2021-08-12 17:46:48,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 12234 transitions. [2021-08-12 17:46:48,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:48,722 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:48,722 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:48,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-12 17:46:48,722 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:48,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1417459553, now seen corresponding path program 6 times [2021-08-12 17:46:48,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:48,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570613381] [2021-08-12 17:46:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:49,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:49,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:49,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570613381] [2021-08-12 17:46:49,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570613381] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:49,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:49,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:46:49,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057410918] [2021-08-12 17:46:49,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:46:49,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:49,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:46:49,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:46:49,519 INFO L87 Difference]: Start difference. First operand 4661 states and 12234 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:50,416 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:46:50,575 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:51,260 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-08-12 17:46:51,469 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:46:51,610 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:51,766 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-08-12 17:46:52,005 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:46:52,161 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:46:52,442 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:46:52,723 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:46:53,026 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:46:53,217 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:46:53,556 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:46:54,991 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-08-12 17:46:55,121 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-08-12 17:46:55,274 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-08-12 17:46:55,450 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:46:55,637 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-08-12 17:46:55,772 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:55,939 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-08-12 17:46:56,084 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-08-12 17:46:56,210 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-08-12 17:46:56,361 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:46:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:46:56,494 INFO L93 Difference]: Finished difference Result 7509 states and 18728 transitions. [2021-08-12 17:46:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-12 17:46:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:46:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:46:56,507 INFO L225 Difference]: With dead ends: 7509 [2021-08-12 17:46:56,507 INFO L226 Difference]: Without dead ends: 7507 [2021-08-12 17:46:56,509 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 4709.7ms TimeCoverageRelationStatistics Valid=824, Invalid=2368, Unknown=0, NotChecked=0, Total=3192 [2021-08-12 17:46:56,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7507 states. [2021-08-12 17:46:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7507 to 4649. [2021-08-12 17:46:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4649 states, 4647 states have (on average 2.6262104583602324) internal successors, (12204), 4648 states have internal predecessors, (12204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4649 states to 4649 states and 12204 transitions. [2021-08-12 17:46:57,061 INFO L78 Accepts]: Start accepts. Automaton has 4649 states and 12204 transitions. Word has length 94 [2021-08-12 17:46:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:46:57,061 INFO L482 AbstractCegarLoop]: Abstraction has 4649 states and 12204 transitions. [2021-08-12 17:46:57,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:46:57,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4649 states and 12204 transitions. [2021-08-12 17:46:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:46:57,070 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:46:57,070 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:46:57,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-12 17:46:57,070 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:46:57,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:46:57,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1712244349, now seen corresponding path program 7 times [2021-08-12 17:46:57,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:46:57,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791491754] [2021-08-12 17:46:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:46:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:46:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:46:57,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:46:57,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791491754] [2021-08-12 17:46:57,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791491754] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:46:57,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:46:57,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:46:57,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838486326] [2021-08-12 17:46:57,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:46:57,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:46:57,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:46:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:46:57,495 INFO L87 Difference]: Start difference. First operand 4649 states and 12204 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:00,055 INFO L93 Difference]: Finished difference Result 5996 states and 15243 transitions. [2021-08-12 17:47:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-12 17:47:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:00,065 INFO L225 Difference]: With dead ends: 5996 [2021-08-12 17:47:00,065 INFO L226 Difference]: Without dead ends: 5994 [2021-08-12 17:47:00,067 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 989.7ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-08-12 17:47:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2021-08-12 17:47:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 4649. [2021-08-12 17:47:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4649 states, 4647 states have (on average 2.6262104583602324) internal successors, (12204), 4648 states have internal predecessors, (12204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4649 states to 4649 states and 12204 transitions. [2021-08-12 17:47:00,569 INFO L78 Accepts]: Start accepts. Automaton has 4649 states and 12204 transitions. Word has length 94 [2021-08-12 17:47:00,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:00,569 INFO L482 AbstractCegarLoop]: Abstraction has 4649 states and 12204 transitions. [2021-08-12 17:47:00,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:00,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4649 states and 12204 transitions. [2021-08-12 17:47:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:00,577 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:00,577 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:00,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-12 17:47:00,577 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:00,578 INFO L82 PathProgramCache]: Analyzing trace with hash -186806265, now seen corresponding path program 8 times [2021-08-12 17:47:00,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:00,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604582731] [2021-08-12 17:47:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:01,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:01,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604582731] [2021-08-12 17:47:01,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604582731] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:01,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:01,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:47:01,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104872384] [2021-08-12 17:47:01,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:47:01,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:01,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:47:01,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:47:01,030 INFO L87 Difference]: Start difference. First operand 4649 states and 12204 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:04,194 INFO L93 Difference]: Finished difference Result 5934 states and 14933 transitions. [2021-08-12 17:47:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:47:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:04,205 INFO L225 Difference]: With dead ends: 5934 [2021-08-12 17:47:04,205 INFO L226 Difference]: Without dead ends: 5932 [2021-08-12 17:47:04,206 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1141.5ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:47:04,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2021-08-12 17:47:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 4599. [2021-08-12 17:47:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 4597 states have (on average 2.6249728083532737) internal successors, (12067), 4598 states have internal predecessors, (12067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 12067 transitions. [2021-08-12 17:47:04,682 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 12067 transitions. Word has length 94 [2021-08-12 17:47:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:04,683 INFO L482 AbstractCegarLoop]: Abstraction has 4599 states and 12067 transitions. [2021-08-12 17:47:04,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 12067 transitions. [2021-08-12 17:47:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:04,691 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:04,691 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:04,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-12 17:47:04,692 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash -938424673, now seen corresponding path program 9 times [2021-08-12 17:47:04,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:04,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249985491] [2021-08-12 17:47:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:05,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:05,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249985491] [2021-08-12 17:47:05,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249985491] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:05,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:05,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:47:05,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902790531] [2021-08-12 17:47:05,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:47:05,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:05,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:47:05,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:47:05,169 INFO L87 Difference]: Start difference. First operand 4599 states and 12067 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:08,516 INFO L93 Difference]: Finished difference Result 5872 states and 14666 transitions. [2021-08-12 17:47:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:47:08,518 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:08,532 INFO L225 Difference]: With dead ends: 5872 [2021-08-12 17:47:08,532 INFO L226 Difference]: Without dead ends: 5870 [2021-08-12 17:47:08,534 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1141.6ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:47:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2021-08-12 17:47:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 4549. [2021-08-12 17:47:09,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4549 states, 4547 states have (on average 2.6237079393006377) internal successors, (11930), 4548 states have internal predecessors, (11930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:09,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 11930 transitions. [2021-08-12 17:47:09,060 INFO L78 Accepts]: Start accepts. Automaton has 4549 states and 11930 transitions. Word has length 94 [2021-08-12 17:47:09,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:09,061 INFO L482 AbstractCegarLoop]: Abstraction has 4549 states and 11930 transitions. [2021-08-12 17:47:09,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states and 11930 transitions. [2021-08-12 17:47:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:09,072 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:09,072 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:09,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-12 17:47:09,073 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash -356783737, now seen corresponding path program 10 times [2021-08-12 17:47:09,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:09,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480385283] [2021-08-12 17:47:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:09,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:09,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480385283] [2021-08-12 17:47:09,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480385283] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:09,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:09,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:47:09,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677419016] [2021-08-12 17:47:09,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:47:09,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:09,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:47:09,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:47:09,491 INFO L87 Difference]: Start difference. First operand 4549 states and 11930 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:12,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:12,592 INFO L93 Difference]: Finished difference Result 5987 states and 14914 transitions. [2021-08-12 17:47:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:47:12,593 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:12,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:12,602 INFO L225 Difference]: With dead ends: 5987 [2021-08-12 17:47:12,602 INFO L226 Difference]: Without dead ends: 5985 [2021-08-12 17:47:12,603 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1067.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:47:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2021-08-12 17:47:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 4449. [2021-08-12 17:47:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 4447 states have (on average 2.621092871598831) internal successors, (11656), 4448 states have internal predecessors, (11656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 11656 transitions. [2021-08-12 17:47:13,103 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 11656 transitions. Word has length 94 [2021-08-12 17:47:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:13,103 INFO L482 AbstractCegarLoop]: Abstraction has 4449 states and 11656 transitions. [2021-08-12 17:47:13,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 11656 transitions. [2021-08-12 17:47:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:13,110 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:13,110 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:13,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-12 17:47:13,111 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:13,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:13,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1061403897, now seen corresponding path program 11 times [2021-08-12 17:47:13,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:13,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463059000] [2021-08-12 17:47:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:13,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:13,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463059000] [2021-08-12 17:47:13,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463059000] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:13,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:13,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:47:13,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588686323] [2021-08-12 17:47:13,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:47:13,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:13,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:47:13,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:47:13,539 INFO L87 Difference]: Start difference. First operand 4449 states and 11656 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:16,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:16,672 INFO L93 Difference]: Finished difference Result 6013 states and 14933 transitions. [2021-08-12 17:47:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:47:16,673 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:16,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:16,682 INFO L225 Difference]: With dead ends: 6013 [2021-08-12 17:47:16,682 INFO L226 Difference]: Without dead ends: 6011 [2021-08-12 17:47:16,683 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 973.6ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:47:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-08-12 17:47:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 4399. [2021-08-12 17:47:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4399 states, 4397 states have (on average 2.619740732317489) internal successors, (11519), 4398 states have internal predecessors, (11519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 11519 transitions. [2021-08-12 17:47:17,182 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 11519 transitions. Word has length 94 [2021-08-12 17:47:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:17,182 INFO L482 AbstractCegarLoop]: Abstraction has 4399 states and 11519 transitions. [2021-08-12 17:47:17,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 11519 transitions. [2021-08-12 17:47:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:17,188 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:17,189 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:17,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-12 17:47:17,189 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1559630751, now seen corresponding path program 12 times [2021-08-12 17:47:17,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:17,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719986287] [2021-08-12 17:47:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:17,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:17,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719986287] [2021-08-12 17:47:17,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719986287] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:17,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:17,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:47:17,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480038961] [2021-08-12 17:47:17,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:47:17,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:17,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:47:17,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:47:17,680 INFO L87 Difference]: Start difference. First operand 4399 states and 11519 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:20,380 INFO L93 Difference]: Finished difference Result 5203 states and 13161 transitions. [2021-08-12 17:47:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-12 17:47:20,380 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:20,390 INFO L225 Difference]: With dead ends: 5203 [2021-08-12 17:47:20,390 INFO L226 Difference]: Without dead ends: 5201 [2021-08-12 17:47:20,391 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 978.9ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:47:20,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5201 states. [2021-08-12 17:47:20,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5201 to 4109. [2021-08-12 17:47:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4109 states, 4107 states have (on average 2.634526418310202) internal successors, (10820), 4108 states have internal predecessors, (10820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 10820 transitions. [2021-08-12 17:47:20,879 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 10820 transitions. Word has length 94 [2021-08-12 17:47:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:20,879 INFO L482 AbstractCegarLoop]: Abstraction has 4109 states and 10820 transitions. [2021-08-12 17:47:20,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 10820 transitions. [2021-08-12 17:47:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:20,885 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:20,885 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:20,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-12 17:47:20,885 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:20,886 INFO L82 PathProgramCache]: Analyzing trace with hash 891391129, now seen corresponding path program 13 times [2021-08-12 17:47:20,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:20,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858802973] [2021-08-12 17:47:20,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:21,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:21,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858802973] [2021-08-12 17:47:21,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858802973] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:21,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:21,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:47:21,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430387091] [2021-08-12 17:47:21,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:47:21,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:21,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:47:21,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:47:21,607 INFO L87 Difference]: Start difference. First operand 4109 states and 10820 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:22,638 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-08-12 17:47:22,801 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:23,045 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-08-12 17:47:23,219 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:47:23,426 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:47:23,641 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-08-12 17:47:23,886 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-08-12 17:47:24,065 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:47:24,333 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-08-12 17:47:25,235 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:25,637 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:47:25,939 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:47:26,412 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:47:26,750 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-08-12 17:47:28,780 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2021-08-12 17:47:29,132 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2021-08-12 17:47:29,260 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:29,494 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2021-08-12 17:47:29,633 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:29,867 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2021-08-12 17:47:29,989 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:47:30,224 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-08-12 17:47:30,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:30,356 INFO L93 Difference]: Finished difference Result 6862 states and 17297 transitions. [2021-08-12 17:47:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-12 17:47:30,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:30,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:30,374 INFO L225 Difference]: With dead ends: 6862 [2021-08-12 17:47:30,374 INFO L226 Difference]: Without dead ends: 6860 [2021-08-12 17:47:30,376 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 5333.8ms TimeCoverageRelationStatistics Valid=1000, Invalid=2422, Unknown=0, NotChecked=0, Total=3422 [2021-08-12 17:47:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2021-08-12 17:47:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 3953. [2021-08-12 17:47:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3953 states, 3951 states have (on average 2.6504682358896483) internal successors, (10472), 3952 states have internal predecessors, (10472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 10472 transitions. [2021-08-12 17:47:30,899 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 10472 transitions. Word has length 94 [2021-08-12 17:47:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:30,899 INFO L482 AbstractCegarLoop]: Abstraction has 3953 states and 10472 transitions. [2021-08-12 17:47:30,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 10472 transitions. [2021-08-12 17:47:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:30,904 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:30,904 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:30,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-12 17:47:30,904 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:30,905 INFO L82 PathProgramCache]: Analyzing trace with hash 814259131, now seen corresponding path program 14 times [2021-08-12 17:47:30,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:30,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799199741] [2021-08-12 17:47:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:31,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:31,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799199741] [2021-08-12 17:47:31,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799199741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:31,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:31,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:47:31,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097022234] [2021-08-12 17:47:31,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:47:31,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:31,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:47:31,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:47:31,737 INFO L87 Difference]: Start difference. First operand 3953 states and 10472 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:32,778 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-08-12 17:47:32,908 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:33,080 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-08-12 17:47:33,226 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:47:33,429 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:47:33,679 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-08-12 17:47:33,962 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-08-12 17:47:34,142 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:47:34,399 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-08-12 17:47:35,135 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:35,533 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:47:35,830 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:47:36,287 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-08-12 17:47:36,480 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:47:36,819 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-08-12 17:47:38,923 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-08-12 17:47:39,269 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-08-12 17:47:39,620 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-08-12 17:47:39,751 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:39,977 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-08-12 17:47:40,102 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:47:40,330 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-08-12 17:47:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:40,463 INFO L93 Difference]: Finished difference Result 6291 states and 15804 transitions. [2021-08-12 17:47:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-12 17:47:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:40,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:40,473 INFO L225 Difference]: With dead ends: 6291 [2021-08-12 17:47:40,473 INFO L226 Difference]: Without dead ends: 6289 [2021-08-12 17:47:40,475 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 5584.0ms TimeCoverageRelationStatistics Valid=994, Invalid=2546, Unknown=0, NotChecked=0, Total=3540 [2021-08-12 17:47:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2021-08-12 17:47:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 3905. [2021-08-12 17:47:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3903 states have (on average 2.646169613118114) internal successors, (10328), 3904 states have internal predecessors, (10328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 10328 transitions. [2021-08-12 17:47:40,978 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 10328 transitions. Word has length 94 [2021-08-12 17:47:40,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:40,978 INFO L482 AbstractCegarLoop]: Abstraction has 3905 states and 10328 transitions. [2021-08-12 17:47:40,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 10328 transitions. [2021-08-12 17:47:40,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:40,982 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:40,983 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:40,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-12 17:47:40,983 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:40,983 INFO L82 PathProgramCache]: Analyzing trace with hash -985219549, now seen corresponding path program 15 times [2021-08-12 17:47:40,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:40,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946499193] [2021-08-12 17:47:40,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:41,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:41,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946499193] [2021-08-12 17:47:41,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946499193] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:41,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:41,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:47:41,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420548398] [2021-08-12 17:47:41,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:47:41,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:41,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:47:41,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:47:41,715 INFO L87 Difference]: Start difference. First operand 3905 states and 10328 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:42,685 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-08-12 17:47:42,814 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:42,984 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-08-12 17:47:43,188 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:47:43,396 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:47:43,612 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-08-12 17:47:43,845 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:47:44,691 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:45,077 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:47:45,417 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:47:45,741 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-08-12 17:47:46,093 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:47:46,282 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:47:46,666 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-08-12 17:47:49,478 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-08-12 17:47:49,819 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-08-12 17:47:49,946 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:50,152 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-08-12 17:47:50,284 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:50,462 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-08-12 17:47:50,709 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-08-12 17:47:50,832 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:47:51,030 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:47:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:47:51,165 INFO L93 Difference]: Finished difference Result 7396 states and 18418 transitions. [2021-08-12 17:47:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-12 17:47:51,168 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:47:51,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:47:51,180 INFO L225 Difference]: With dead ends: 7396 [2021-08-12 17:47:51,181 INFO L226 Difference]: Without dead ends: 7394 [2021-08-12 17:47:51,182 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 5337.7ms TimeCoverageRelationStatistics Valid=975, Invalid=2565, Unknown=0, NotChecked=0, Total=3540 [2021-08-12 17:47:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7394 states. [2021-08-12 17:47:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7394 to 3857. [2021-08-12 17:47:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3857 states, 3855 states have (on average 2.641763942931258) internal successors, (10184), 3856 states have internal predecessors, (10184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 10184 transitions. [2021-08-12 17:47:51,676 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 10184 transitions. Word has length 94 [2021-08-12 17:47:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:47:51,676 INFO L482 AbstractCegarLoop]: Abstraction has 3857 states and 10184 transitions. [2021-08-12 17:47:51,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 10184 transitions. [2021-08-12 17:47:51,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:47:51,680 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:47:51,681 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:47:51,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-12 17:47:51,681 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:47:51,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:47:51,681 INFO L82 PathProgramCache]: Analyzing trace with hash 781832763, now seen corresponding path program 16 times [2021-08-12 17:47:51,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:47:51,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152568463] [2021-08-12 17:47:51,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:47:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:47:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:47:52,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:47:52,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152568463] [2021-08-12 17:47:52,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152568463] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:47:52,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:47:52,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:47:52,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57525205] [2021-08-12 17:47:52,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:47:52,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:47:52,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:47:52,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:47:52,399 INFO L87 Difference]: Start difference. First operand 3857 states and 10184 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:47:53,371 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-08-12 17:47:53,500 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:47:53,671 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-08-12 17:47:53,816 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:47:54,011 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:47:54,974 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:47:55,356 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:47:55,511 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:47:55,834 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:47:56,190 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-08-12 17:47:56,578 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:47:56,771 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:47:57,176 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-08-12 17:48:00,184 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-08-12 17:48:00,478 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:48:00,604 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:48:00,828 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:48:00,970 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:01,127 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:48:01,305 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-08-12 17:48:01,427 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:48:01,605 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:48:01,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:01,740 INFO L93 Difference]: Finished difference Result 7508 states and 18676 transitions. [2021-08-12 17:48:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-12 17:48:01,740 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:01,751 INFO L225 Difference]: With dead ends: 7508 [2021-08-12 17:48:01,751 INFO L226 Difference]: Without dead ends: 7506 [2021-08-12 17:48:01,753 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 4966.0ms TimeCoverageRelationStatistics Valid=925, Invalid=2497, Unknown=0, NotChecked=0, Total=3422 [2021-08-12 17:48:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2021-08-12 17:48:02,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 3761. [2021-08-12 17:48:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 3759 states have (on average 2.632615057196063) internal successors, (9896), 3760 states have internal predecessors, (9896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 9896 transitions. [2021-08-12 17:48:02,256 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 9896 transitions. Word has length 94 [2021-08-12 17:48:02,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:02,256 INFO L482 AbstractCegarLoop]: Abstraction has 3761 states and 9896 transitions. [2021-08-12 17:48:02,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 9896 transitions. [2021-08-12 17:48:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:02,260 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:02,260 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:02,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-12 17:48:02,260 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:02,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1052178245, now seen corresponding path program 17 times [2021-08-12 17:48:02,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:02,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840650572] [2021-08-12 17:48:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:02,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:02,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840650572] [2021-08-12 17:48:02,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840650572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:02,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:02,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:48:02,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004027769] [2021-08-12 17:48:02,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:48:02,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:02,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:48:02,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:48:02,983 INFO L87 Difference]: Start difference. First operand 3761 states and 9896 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:03,640 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-08-12 17:48:03,972 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-08-12 17:48:04,103 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:48:04,275 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:48:05,238 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-08-12 17:48:05,398 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:05,787 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:48:05,940 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:48:06,276 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:48:06,626 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-08-12 17:48:07,011 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:48:07,206 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:48:07,641 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-08-12 17:48:10,815 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-08-12 17:48:11,095 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:48:11,220 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:48:11,390 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:48:11,551 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:11,692 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-08-12 17:48:11,851 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-08-12 17:48:11,973 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:48:12,134 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:48:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:12,269 INFO L93 Difference]: Finished difference Result 7645 states and 18991 transitions. [2021-08-12 17:48:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-12 17:48:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:12,279 INFO L225 Difference]: With dead ends: 7645 [2021-08-12 17:48:12,279 INFO L226 Difference]: Without dead ends: 7643 [2021-08-12 17:48:12,280 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 4735.8ms TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2021-08-12 17:48:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2021-08-12 17:48:12,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 3713. [2021-08-12 17:48:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3711 states have (on average 2.6278631096739424) internal successors, (9752), 3712 states have internal predecessors, (9752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 9752 transitions. [2021-08-12 17:48:12,795 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 9752 transitions. Word has length 94 [2021-08-12 17:48:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:12,795 INFO L482 AbstractCegarLoop]: Abstraction has 3713 states and 9752 transitions. [2021-08-12 17:48:12,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 9752 transitions. [2021-08-12 17:48:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:12,799 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:12,800 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:12,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-12 17:48:12,800 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash -314420957, now seen corresponding path program 18 times [2021-08-12 17:48:12,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:12,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666750146] [2021-08-12 17:48:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:13,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:13,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666750146] [2021-08-12 17:48:13,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666750146] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:13,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:13,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:48:13,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334815718] [2021-08-12 17:48:13,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:48:13,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:13,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:48:13,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:48:13,558 INFO L87 Difference]: Start difference. First operand 3713 states and 9752 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:14,393 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-08-12 17:48:14,543 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:48:15,373 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-08-12 17:48:15,629 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-08-12 17:48:15,764 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:15,954 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-08-12 17:48:16,187 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:48:16,338 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:48:16,675 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:48:17,025 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-08-12 17:48:17,404 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:48:17,590 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:48:18,018 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-08-12 17:48:20,678 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-08-12 17:48:20,941 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:48:21,067 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:48:21,221 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:48:21,353 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:21,483 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-08-12 17:48:21,628 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-08-12 17:48:21,751 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-08-12 17:48:21,898 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:48:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:22,033 INFO L93 Difference]: Finished difference Result 6980 states and 17566 transitions. [2021-08-12 17:48:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-12 17:48:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:22,044 INFO L225 Difference]: With dead ends: 6980 [2021-08-12 17:48:22,044 INFO L226 Difference]: Without dead ends: 6978 [2021-08-12 17:48:22,046 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4481.5ms TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2021-08-12 17:48:22,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2021-08-12 17:48:22,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 3587. [2021-08-12 17:48:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3585 states have (on average 2.6304044630404464) internal successors, (9430), 3586 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 9430 transitions. [2021-08-12 17:48:22,594 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 9430 transitions. Word has length 94 [2021-08-12 17:48:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:22,594 INFO L482 AbstractCegarLoop]: Abstraction has 3587 states and 9430 transitions. [2021-08-12 17:48:22,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:22,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 9430 transitions. [2021-08-12 17:48:22,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:22,598 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:22,598 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:22,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-12 17:48:22,598 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:22,599 INFO L82 PathProgramCache]: Analyzing trace with hash 689241785, now seen corresponding path program 2 times [2021-08-12 17:48:22,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:22,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14829346] [2021-08-12 17:48:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:23,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:23,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14829346] [2021-08-12 17:48:23,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14829346] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:23,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:23,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-12 17:48:23,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578297808] [2021-08-12 17:48:23,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-08-12 17:48:23,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:23,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-12 17:48:23,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2021-08-12 17:48:23,344 INFO L87 Difference]: Start difference. First operand 3587 states and 9430 transitions. Second operand has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:30,072 INFO L93 Difference]: Finished difference Result 6209 states and 16091 transitions. [2021-08-12 17:48:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-08-12 17:48:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:30,084 INFO L225 Difference]: With dead ends: 6209 [2021-08-12 17:48:30,084 INFO L226 Difference]: Without dead ends: 6106 [2021-08-12 17:48:30,086 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 2873.0ms TimeCoverageRelationStatistics Valid=1048, Invalid=4064, Unknown=0, NotChecked=0, Total=5112 [2021-08-12 17:48:30,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2021-08-12 17:48:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 4435. [2021-08-12 17:48:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 4433 states have (on average 2.656665914730431) internal successors, (11777), 4434 states have internal predecessors, (11777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 11777 transitions. [2021-08-12 17:48:30,856 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 11777 transitions. Word has length 94 [2021-08-12 17:48:30,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:30,856 INFO L482 AbstractCegarLoop]: Abstraction has 4435 states and 11777 transitions. [2021-08-12 17:48:30,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:30,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 11777 transitions. [2021-08-12 17:48:30,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:30,861 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:30,861 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:30,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-12 17:48:30,862 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:30,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:30,862 INFO L82 PathProgramCache]: Analyzing trace with hash -76295461, now seen corresponding path program 19 times [2021-08-12 17:48:30,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:30,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687914666] [2021-08-12 17:48:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:31,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:31,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687914666] [2021-08-12 17:48:31,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687914666] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:31,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:31,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:48:31,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204577083] [2021-08-12 17:48:31,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:48:31,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:31,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:48:31,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:48:31,236 INFO L87 Difference]: Start difference. First operand 4435 states and 11777 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:35,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:35,217 INFO L93 Difference]: Finished difference Result 5235 states and 13354 transitions. [2021-08-12 17:48:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-12 17:48:35,217 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:35,229 INFO L225 Difference]: With dead ends: 5235 [2021-08-12 17:48:35,230 INFO L226 Difference]: Without dead ends: 5233 [2021-08-12 17:48:35,231 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1032.0ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-08-12 17:48:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5233 states. [2021-08-12 17:48:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5233 to 4456. [2021-08-12 17:48:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4454 states have (on average 2.6553659631791646) internal successors, (11827), 4455 states have internal predecessors, (11827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11827 transitions. [2021-08-12 17:48:35,988 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11827 transitions. Word has length 94 [2021-08-12 17:48:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:35,988 INFO L482 AbstractCegarLoop]: Abstraction has 4456 states and 11827 transitions. [2021-08-12 17:48:35,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11827 transitions. [2021-08-12 17:48:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:35,993 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:35,993 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:35,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-12 17:48:35,993 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1290428557, now seen corresponding path program 20 times [2021-08-12 17:48:35,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:35,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304835844] [2021-08-12 17:48:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:36,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:36,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304835844] [2021-08-12 17:48:36,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304835844] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:36,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:36,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:48:36,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743352623] [2021-08-12 17:48:36,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:48:36,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:36,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:48:36,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:48:36,631 INFO L87 Difference]: Start difference. First operand 4456 states and 11827 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:37,520 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:48:37,734 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:48:37,935 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:48:39,472 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-08-12 17:48:39,851 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-08-12 17:48:40,214 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-08-12 17:48:42,968 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:48:43,164 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:48:43,352 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:48:43,561 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:48:43,727 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-08-12 17:48:43,917 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-08-12 17:48:44,109 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-08-12 17:48:44,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:44,128 INFO L93 Difference]: Finished difference Result 6771 states and 17321 transitions. [2021-08-12 17:48:44,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-12 17:48:44,129 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:44,140 INFO L225 Difference]: With dead ends: 6771 [2021-08-12 17:48:44,140 INFO L226 Difference]: Without dead ends: 6769 [2021-08-12 17:48:44,141 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 3268.6ms TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-08-12 17:48:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6769 states. [2021-08-12 17:48:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6769 to 4564. [2021-08-12 17:48:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 4562 states have (on average 2.662209557211749) internal successors, (12145), 4563 states have internal predecessors, (12145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 12145 transitions. [2021-08-12 17:48:44,966 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 12145 transitions. Word has length 94 [2021-08-12 17:48:44,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:44,966 INFO L482 AbstractCegarLoop]: Abstraction has 4564 states and 12145 transitions. [2021-08-12 17:48:44,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 12145 transitions. [2021-08-12 17:48:44,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:44,971 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:44,971 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:44,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-12 17:48:44,971 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:44,971 INFO L82 PathProgramCache]: Analyzing trace with hash -223903799, now seen corresponding path program 3 times [2021-08-12 17:48:44,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:44,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354780228] [2021-08-12 17:48:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:45,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:45,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354780228] [2021-08-12 17:48:45,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354780228] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:45,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:45,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-12 17:48:45,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548283878] [2021-08-12 17:48:45,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-08-12 17:48:45,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:45,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-12 17:48:45,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2021-08-12 17:48:45,696 INFO L87 Difference]: Start difference. First operand 4564 states and 12145 transitions. Second operand has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:47,503 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-08-12 17:48:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:48:53,331 INFO L93 Difference]: Finished difference Result 6700 states and 17403 transitions. [2021-08-12 17:48:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-12 17:48:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:48:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:48:53,344 INFO L225 Difference]: With dead ends: 6700 [2021-08-12 17:48:53,344 INFO L226 Difference]: Without dead ends: 6616 [2021-08-12 17:48:53,345 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 2457.7ms TimeCoverageRelationStatistics Valid=827, Invalid=3333, Unknown=0, NotChecked=0, Total=4160 [2021-08-12 17:48:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2021-08-12 17:48:54,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 4924. [2021-08-12 17:48:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4924 states, 4922 states have (on average 2.6625355546525804) internal successors, (13105), 4923 states have internal predecessors, (13105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 13105 transitions. [2021-08-12 17:48:54,235 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 13105 transitions. Word has length 94 [2021-08-12 17:48:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:48:54,235 INFO L482 AbstractCegarLoop]: Abstraction has 4924 states and 13105 transitions. [2021-08-12 17:48:54,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 26 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 13105 transitions. [2021-08-12 17:48:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:48:54,240 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:48:54,241 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:48:54,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-12 17:48:54,241 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:48:54,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:48:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1000323179, now seen corresponding path program 21 times [2021-08-12 17:48:54,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:48:54,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589145296] [2021-08-12 17:48:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:48:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:48:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:48:54,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:48:54,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589145296] [2021-08-12 17:48:54,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589145296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:48:54,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:48:54,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:48:54,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247177416] [2021-08-12 17:48:54,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:48:54,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:48:54,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:48:54,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:48:54,898 INFO L87 Difference]: Start difference. First operand 4924 states and 13105 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:48:55,818 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:48:56,066 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:48:56,270 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-08-12 17:48:56,522 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-08-12 17:48:56,788 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-08-12 17:48:58,925 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-08-12 17:48:59,362 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-08-12 17:49:02,735 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-08-12 17:49:02,946 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-08-12 17:49:03,170 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-08-12 17:49:03,385 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-08-12 17:49:03,602 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-08-12 17:49:03,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:49:03,617 INFO L93 Difference]: Finished difference Result 8127 states and 20885 transitions. [2021-08-12 17:49:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-12 17:49:03,617 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:49:03,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:49:03,630 INFO L225 Difference]: With dead ends: 8127 [2021-08-12 17:49:03,630 INFO L226 Difference]: Without dead ends: 8125 [2021-08-12 17:49:03,631 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3247.1ms TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-08-12 17:49:03,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8125 states. [2021-08-12 17:49:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8125 to 4564. [2021-08-12 17:49:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 4562 states have (on average 2.662209557211749) internal successors, (12145), 4563 states have internal predecessors, (12145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 12145 transitions. [2021-08-12 17:49:04,521 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 12145 transitions. Word has length 94 [2021-08-12 17:49:04,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:49:04,522 INFO L482 AbstractCegarLoop]: Abstraction has 4564 states and 12145 transitions. [2021-08-12 17:49:04,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 12145 transitions. [2021-08-12 17:49:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:49:04,526 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:49:04,527 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:49:04,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-12 17:49:04,527 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:49:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:49:04,527 INFO L82 PathProgramCache]: Analyzing trace with hash -672432475, now seen corresponding path program 22 times [2021-08-12 17:49:04,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:49:04,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726815077] [2021-08-12 17:49:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:49:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:49:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:49:05,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:49:05,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726815077] [2021-08-12 17:49:05,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726815077] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:49:05,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:49:05,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:49:05,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712986449] [2021-08-12 17:49:05,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:49:05,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:49:05,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:49:05,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:49:05,072 INFO L87 Difference]: Start difference. First operand 4564 states and 12145 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:05,946 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:49:06,159 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:49:07,703 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:49:08,069 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-08-12 17:49:08,458 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:49:08,873 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-08-12 17:49:12,695 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-08-12 17:49:12,868 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-08-12 17:49:13,041 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:49:13,227 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:49:13,379 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:49:13,557 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:49:13,743 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:49:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:49:13,764 INFO L93 Difference]: Finished difference Result 7291 states and 18434 transitions. [2021-08-12 17:49:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-12 17:49:13,764 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:49:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:49:13,775 INFO L225 Difference]: With dead ends: 7291 [2021-08-12 17:49:13,776 INFO L226 Difference]: Without dead ends: 7289 [2021-08-12 17:49:13,776 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3012.9ms TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-08-12 17:49:13,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2021-08-12 17:49:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 4568. [2021-08-12 17:49:14,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4566 states have (on average 2.662067455102935) internal successors, (12155), 4567 states have internal predecessors, (12155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12155 transitions. [2021-08-12 17:49:14,665 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12155 transitions. Word has length 94 [2021-08-12 17:49:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:49:14,665 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12155 transitions. [2021-08-12 17:49:14,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12155 transitions. [2021-08-12 17:49:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:49:14,672 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:49:14,672 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:49:14,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-12 17:49:14,672 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:49:14,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:49:14,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1096103279, now seen corresponding path program 23 times [2021-08-12 17:49:14,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:49:14,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788911914] [2021-08-12 17:49:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:49:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:49:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:49:15,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:49:15,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788911914] [2021-08-12 17:49:15,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788911914] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:49:15,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:49:15,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:49:15,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288000920] [2021-08-12 17:49:15,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:49:15,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:49:15,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:49:15,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:49:15,240 INFO L87 Difference]: Start difference. First operand 4568 states and 12155 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:16,105 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:49:16,349 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:49:17,852 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:49:18,208 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:49:18,591 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:49:18,776 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:49:19,218 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:49:23,228 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-08-12 17:49:23,402 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-08-12 17:49:23,575 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:49:23,763 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:49:23,915 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:49:24,090 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:49:24,266 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:49:24,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:49:24,287 INFO L93 Difference]: Finished difference Result 7161 states and 18133 transitions. [2021-08-12 17:49:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-12 17:49:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:49:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:49:24,298 INFO L225 Difference]: With dead ends: 7161 [2021-08-12 17:49:24,298 INFO L226 Difference]: Without dead ends: 7159 [2021-08-12 17:49:24,299 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3228.2ms TimeCoverageRelationStatistics Valid=572, Invalid=1590, Unknown=0, NotChecked=0, Total=2162 [2021-08-12 17:49:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7159 states. [2021-08-12 17:49:25,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 4568. [2021-08-12 17:49:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4566 states have (on average 2.662067455102935) internal successors, (12155), 4567 states have internal predecessors, (12155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12155 transitions. [2021-08-12 17:49:25,218 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12155 transitions. Word has length 94 [2021-08-12 17:49:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:49:25,219 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12155 transitions. [2021-08-12 17:49:25,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12155 transitions. [2021-08-12 17:49:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:49:25,223 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:49:25,223 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:49:25,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-12 17:49:25,223 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:49:25,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:49:25,224 INFO L82 PathProgramCache]: Analyzing trace with hash 547063309, now seen corresponding path program 4 times [2021-08-12 17:49:25,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:49:25,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909135194] [2021-08-12 17:49:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:49:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:49:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:49:25,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:49:25,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909135194] [2021-08-12 17:49:25,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909135194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:49:25,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:49:25,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-12 17:49:25,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489423794] [2021-08-12 17:49:25,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-08-12 17:49:25,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:49:25,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-12 17:49:25,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2021-08-12 17:49:25,839 INFO L87 Difference]: Start difference. First operand 4568 states and 12155 transitions. Second operand has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:49:33,949 INFO L93 Difference]: Finished difference Result 6701 states and 17381 transitions. [2021-08-12 17:49:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-08-12 17:49:33,949 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:49:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:49:33,960 INFO L225 Difference]: With dead ends: 6701 [2021-08-12 17:49:33,960 INFO L226 Difference]: Without dead ends: 6617 [2021-08-12 17:49:33,962 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 2332.0ms TimeCoverageRelationStatistics Valid=939, Invalid=3753, Unknown=0, NotChecked=0, Total=4692 [2021-08-12 17:49:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6617 states. [2021-08-12 17:49:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6617 to 4964. [2021-08-12 17:49:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4962 states have (on average 2.664852881902459) internal successors, (13223), 4963 states have internal predecessors, (13223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 13223 transitions. [2021-08-12 17:49:34,927 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 13223 transitions. Word has length 94 [2021-08-12 17:49:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:49:34,927 INFO L482 AbstractCegarLoop]: Abstraction has 4964 states and 13223 transitions. [2021-08-12 17:49:34,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 13223 transitions. [2021-08-12 17:49:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:49:34,932 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:49:34,932 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:49:34,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-12 17:49:34,932 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:49:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:49:34,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1771290287, now seen corresponding path program 24 times [2021-08-12 17:49:34,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:49:34,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722102504] [2021-08-12 17:49:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:49:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:49:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:49:35,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:49:35,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722102504] [2021-08-12 17:49:35,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722102504] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:49:35,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:49:35,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:49:35,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390693662] [2021-08-12 17:49:35,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:49:35,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:49:35,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:49:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:49:35,575 INFO L87 Difference]: Start difference. First operand 4964 states and 13223 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:36,446 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:49:36,663 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:49:36,897 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:49:37,179 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:49:37,356 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:49:37,626 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-08-12 17:49:40,699 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:49:40,886 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:49:41,504 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:49:47,274 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-08-12 17:49:47,478 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:49:47,675 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-08-12 17:49:47,887 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-08-12 17:49:48,098 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-08-12 17:49:48,355 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-08-12 17:49:48,556 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:49:48,764 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-08-12 17:49:48,964 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:49:49,168 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-08-12 17:49:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:49:49,192 INFO L93 Difference]: Finished difference Result 10229 states and 26001 transitions. [2021-08-12 17:49:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-12 17:49:49,192 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:49:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:49:49,206 INFO L225 Difference]: With dead ends: 10229 [2021-08-12 17:49:49,206 INFO L226 Difference]: Without dead ends: 10227 [2021-08-12 17:49:49,207 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4622.5ms TimeCoverageRelationStatistics Valid=773, Invalid=1879, Unknown=0, NotChecked=0, Total=2652 [2021-08-12 17:49:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10227 states. [2021-08-12 17:49:50,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10227 to 4592. [2021-08-12 17:49:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4590 states have (on average 2.6638344226579522) internal successors, (12227), 4591 states have internal predecessors, (12227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 12227 transitions. [2021-08-12 17:49:50,162 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 12227 transitions. Word has length 94 [2021-08-12 17:49:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:49:50,162 INFO L482 AbstractCegarLoop]: Abstraction has 4592 states and 12227 transitions. [2021-08-12 17:49:50,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 12227 transitions. [2021-08-12 17:49:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:49:50,169 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:49:50,169 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:49:50,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-12 17:49:50,169 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:49:50,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:49:50,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1485857111, now seen corresponding path program 25 times [2021-08-12 17:49:50,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:49:50,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925644294] [2021-08-12 17:49:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:49:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:49:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:49:50,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:49:50,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925644294] [2021-08-12 17:49:50,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925644294] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:49:50,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:49:50,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:49:50,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611026909] [2021-08-12 17:49:50,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:49:50,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:49:50,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:49:50,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:49:50,928 INFO L87 Difference]: Start difference. First operand 4592 states and 12227 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:49:51,831 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:49:52,078 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-08-12 17:49:52,296 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:49:52,542 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:49:55,105 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:49:55,649 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:49:55,834 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:49:56,382 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:50:01,755 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-08-12 17:50:01,963 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-08-12 17:50:02,175 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-08-12 17:50:02,360 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:50:02,556 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:50:02,795 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:50:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:50:02,818 INFO L93 Difference]: Finished difference Result 8628 states and 21951 transitions. [2021-08-12 17:50:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-12 17:50:02,818 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:50:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:50:02,831 INFO L225 Difference]: With dead ends: 8628 [2021-08-12 17:50:02,831 INFO L226 Difference]: Without dead ends: 8626 [2021-08-12 17:50:02,832 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 3645.5ms TimeCoverageRelationStatistics Valid=587, Invalid=1575, Unknown=0, NotChecked=0, Total=2162 [2021-08-12 17:50:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2021-08-12 17:50:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 4568. [2021-08-12 17:50:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4566 states have (on average 2.662067455102935) internal successors, (12155), 4567 states have internal predecessors, (12155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12155 transitions. [2021-08-12 17:50:03,896 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12155 transitions. Word has length 94 [2021-08-12 17:50:03,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:50:03,896 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12155 transitions. [2021-08-12 17:50:03,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:03,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12155 transitions. [2021-08-12 17:50:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:50:03,902 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:50:03,902 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:50:03,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-12 17:50:03,902 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:50:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:50:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1831152755, now seen corresponding path program 26 times [2021-08-12 17:50:03,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:50:03,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357936819] [2021-08-12 17:50:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:50:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:50:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:50:04,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:50:04,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357936819] [2021-08-12 17:50:04,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357936819] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:50:04,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:50:04,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:50:04,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038046481] [2021-08-12 17:50:04,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:50:04,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:50:04,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:50:04,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:50:04,507 INFO L87 Difference]: Start difference. First operand 4568 states and 12155 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:05,298 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-08-12 17:50:05,460 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:50:06,890 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:07,436 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:50:07,837 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-08-12 17:50:08,322 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:50:08,833 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-08-12 17:50:13,704 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-08-12 17:50:13,871 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-08-12 17:50:14,034 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:50:14,219 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:50:14,358 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:14,520 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:50:14,688 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:50:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:50:14,712 INFO L93 Difference]: Finished difference Result 7444 states and 18800 transitions. [2021-08-12 17:50:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-12 17:50:14,713 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:50:14,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:50:14,724 INFO L225 Difference]: With dead ends: 7444 [2021-08-12 17:50:14,724 INFO L226 Difference]: Without dead ends: 7442 [2021-08-12 17:50:14,725 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3054.8ms TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-08-12 17:50:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2021-08-12 17:50:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 4580. [2021-08-12 17:50:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.661642638706859) internal successors, (12185), 4579 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12185 transitions. [2021-08-12 17:50:15,767 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12185 transitions. Word has length 94 [2021-08-12 17:50:15,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:50:15,767 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12185 transitions. [2021-08-12 17:50:15,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:15,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12185 transitions. [2021-08-12 17:50:15,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:50:15,772 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:50:15,772 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:50:15,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-12 17:50:15,772 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:50:15,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:50:15,773 INFO L82 PathProgramCache]: Analyzing trace with hash -62617001, now seen corresponding path program 27 times [2021-08-12 17:50:15,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:50:15,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507063946] [2021-08-12 17:50:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:50:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:50:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:50:16,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:50:16,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507063946] [2021-08-12 17:50:16,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507063946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:50:16,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:50:16,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:50:16,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084700577] [2021-08-12 17:50:16,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:50:16,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:50:16,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:50:16,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:50:16,350 INFO L87 Difference]: Start difference. First operand 4580 states and 12185 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:17,242 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:50:18,618 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:19,142 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:50:19,582 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:50:20,038 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:50:20,226 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:50:20,761 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:50:26,782 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-08-12 17:50:26,947 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-08-12 17:50:27,108 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:50:27,284 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:50:27,443 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:27,616 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:50:27,788 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:50:27,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:50:27,812 INFO L93 Difference]: Finished difference Result 7787 states and 19500 transitions. [2021-08-12 17:50:27,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-12 17:50:27,813 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:50:27,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:50:27,826 INFO L225 Difference]: With dead ends: 7787 [2021-08-12 17:50:27,827 INFO L226 Difference]: Without dead ends: 7785 [2021-08-12 17:50:27,828 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3176.9ms TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2021-08-12 17:50:27,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2021-08-12 17:50:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 4576. [2021-08-12 17:50:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4574 states have (on average 2.661783996501968) internal successors, (12175), 4575 states have internal predecessors, (12175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 12175 transitions. [2021-08-12 17:50:28,937 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 12175 transitions. Word has length 94 [2021-08-12 17:50:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:50:28,937 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 12175 transitions. [2021-08-12 17:50:28,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 12175 transitions. [2021-08-12 17:50:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:50:28,942 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:50:28,942 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:50:28,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-12 17:50:28,943 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:50:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:50:28,943 INFO L82 PathProgramCache]: Analyzing trace with hash -597869171, now seen corresponding path program 28 times [2021-08-12 17:50:28,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:50:28,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115002099] [2021-08-12 17:50:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:50:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:50:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:50:29,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:50:29,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115002099] [2021-08-12 17:50:29,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115002099] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:50:29,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:50:29,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:50:29,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724387989] [2021-08-12 17:50:29,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:50:29,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:50:29,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:50:29,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:50:29,542 INFO L87 Difference]: Start difference. First operand 4576 states and 12175 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:30,462 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:50:31,895 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:32,310 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:50:32,735 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:50:33,107 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:50:33,579 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:50:33,790 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:50:34,317 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:50:39,512 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-08-12 17:50:39,680 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-08-12 17:50:39,845 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:50:40,023 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:50:40,163 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:50:40,329 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:50:40,493 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:50:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:50:40,517 INFO L93 Difference]: Finished difference Result 7342 states and 18558 transitions. [2021-08-12 17:50:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-12 17:50:40,517 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:50:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:50:40,530 INFO L225 Difference]: With dead ends: 7342 [2021-08-12 17:50:40,530 INFO L226 Difference]: Without dead ends: 7340 [2021-08-12 17:50:40,531 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 3410.8ms TimeCoverageRelationStatistics Valid=589, Invalid=1667, Unknown=0, NotChecked=0, Total=2256 [2021-08-12 17:50:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7340 states. [2021-08-12 17:50:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7340 to 4576. [2021-08-12 17:50:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4574 states have (on average 2.661783996501968) internal successors, (12175), 4575 states have internal predecessors, (12175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 12175 transitions. [2021-08-12 17:50:41,648 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 12175 transitions. Word has length 94 [2021-08-12 17:50:41,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:50:41,648 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 12175 transitions. [2021-08-12 17:50:41,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 12175 transitions. [2021-08-12 17:50:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:50:41,653 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:50:41,653 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:50:41,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-12 17:50:41,653 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:50:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:50:41,654 INFO L82 PathProgramCache]: Analyzing trace with hash -25428535, now seen corresponding path program 5 times [2021-08-12 17:50:41,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:50:41,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218521241] [2021-08-12 17:50:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:50:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:50:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:50:42,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:50:42,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218521241] [2021-08-12 17:50:42,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218521241] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:50:42,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:50:42,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-12 17:50:42,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003618959] [2021-08-12 17:50:42,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-08-12 17:50:42,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:50:42,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-12 17:50:42,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2021-08-12 17:50:42,285 INFO L87 Difference]: Start difference. First operand 4576 states and 12175 transitions. Second operand has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:50:50,915 INFO L93 Difference]: Finished difference Result 6838 states and 17865 transitions. [2021-08-12 17:50:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-08-12 17:50:50,915 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:50:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:50:50,929 INFO L225 Difference]: With dead ends: 6838 [2021-08-12 17:50:50,929 INFO L226 Difference]: Without dead ends: 6754 [2021-08-12 17:50:50,932 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2246.6ms TimeCoverageRelationStatistics Valid=879, Invalid=3543, Unknown=0, NotChecked=0, Total=4422 [2021-08-12 17:50:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6754 states. [2021-08-12 17:50:52,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6754 to 5044. [2021-08-12 17:50:52,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5044 states, 5042 states have (on average 2.6693772312574375) internal successors, (13459), 5043 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 13459 transitions. [2021-08-12 17:50:52,243 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 13459 transitions. Word has length 94 [2021-08-12 17:50:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:50:52,244 INFO L482 AbstractCegarLoop]: Abstraction has 5044 states and 13459 transitions. [2021-08-12 17:50:52,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:52,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 13459 transitions. [2021-08-12 17:50:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:50:52,249 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:50:52,250 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:50:52,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-12 17:50:52,250 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:50:52,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:50:52,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1198798443, now seen corresponding path program 29 times [2021-08-12 17:50:52,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:50:52,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811781112] [2021-08-12 17:50:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:50:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:50:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:50:52,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:50:52,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811781112] [2021-08-12 17:50:52,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811781112] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:50:52,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:50:52,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:50:52,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410129119] [2021-08-12 17:50:52,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:50:52,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:50:52,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:50:52,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:50:52,847 INFO L87 Difference]: Start difference. First operand 5044 states and 13459 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:50:53,796 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:50:53,992 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:50:54,202 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:50:54,423 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:50:54,688 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:50:54,871 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:50:55,181 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-08-12 17:50:58,222 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:50:59,348 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:50:59,575 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:51:00,324 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:51:07,723 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:51:07,927 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:51:08,106 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:51:08,322 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-08-12 17:51:08,524 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-08-12 17:51:08,751 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-08-12 17:51:08,940 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-08-12 17:51:09,154 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-08-12 17:51:09,340 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:51:09,554 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-08-12 17:51:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:51:09,582 INFO L93 Difference]: Finished difference Result 10867 states and 27707 transitions. [2021-08-12 17:51:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-12 17:51:09,584 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:51:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:51:09,600 INFO L225 Difference]: With dead ends: 10867 [2021-08-12 17:51:09,600 INFO L226 Difference]: Without dead ends: 10865 [2021-08-12 17:51:09,603 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 4904.5ms TimeCoverageRelationStatistics Valid=828, Invalid=2034, Unknown=0, NotChecked=0, Total=2862 [2021-08-12 17:51:09,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2021-08-12 17:51:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 4648. [2021-08-12 17:51:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 4646 states have (on average 2.667025398191993) internal successors, (12391), 4647 states have internal predecessors, (12391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 12391 transitions. [2021-08-12 17:51:10,822 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 12391 transitions. Word has length 94 [2021-08-12 17:51:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:51:10,822 INFO L482 AbstractCegarLoop]: Abstraction has 4648 states and 12391 transitions. [2021-08-12 17:51:10,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:10,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 12391 transitions. [2021-08-12 17:51:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:51:10,827 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:51:10,827 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:51:10,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-12 17:51:10,827 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:51:10,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:51:10,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2058348955, now seen corresponding path program 30 times [2021-08-12 17:51:10,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:51:10,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788187604] [2021-08-12 17:51:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:51:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:51:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:51:11,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:51:11,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788187604] [2021-08-12 17:51:11,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788187604] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:51:11,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:51:11,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:51:11,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689288571] [2021-08-12 17:51:11,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:51:11,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:51:11,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:51:11,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:51:11,372 INFO L87 Difference]: Start difference. First operand 4648 states and 12391 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:12,318 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:51:12,530 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:51:12,740 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:51:12,964 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:51:13,231 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:51:16,650 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:51:17,280 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:51:18,084 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:51:18,272 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:51:19,154 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:51:28,570 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:51:28,753 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-08-12 17:51:28,937 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:51:29,131 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-08-12 17:51:29,331 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-08-12 17:51:29,533 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-08-12 17:51:29,723 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:51:29,900 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-08-12 17:51:30,098 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:51:30,288 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:51:30,476 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:51:30,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:51:30,511 INFO L93 Difference]: Finished difference Result 11154 states and 28201 transitions. [2021-08-12 17:51:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-12 17:51:30,512 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:51:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:51:30,527 INFO L225 Difference]: With dead ends: 11154 [2021-08-12 17:51:30,527 INFO L226 Difference]: Without dead ends: 11152 [2021-08-12 17:51:30,528 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4630.4ms TimeCoverageRelationStatistics Valid=812, Invalid=2050, Unknown=0, NotChecked=0, Total=2862 [2021-08-12 17:51:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11152 states. [2021-08-12 17:51:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11152 to 4624. [2021-08-12 17:51:31,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 4622 states have (on average 2.665296408481177) internal successors, (12319), 4623 states have internal predecessors, (12319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 12319 transitions. [2021-08-12 17:51:31,776 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 12319 transitions. Word has length 94 [2021-08-12 17:51:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:51:31,776 INFO L482 AbstractCegarLoop]: Abstraction has 4624 states and 12319 transitions. [2021-08-12 17:51:31,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 12319 transitions. [2021-08-12 17:51:31,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:51:31,781 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:51:31,781 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:51:31,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-12 17:51:31,781 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:51:31,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:51:31,782 INFO L82 PathProgramCache]: Analyzing trace with hash 271589039, now seen corresponding path program 31 times [2021-08-12 17:51:31,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:51:31,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847258109] [2021-08-12 17:51:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:51:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:51:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:51:32,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:51:32,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847258109] [2021-08-12 17:51:32,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847258109] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:51:32,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:51:32,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:51:32,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236179703] [2021-08-12 17:51:32,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:51:32,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:51:32,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:51:32,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:51:32,523 INFO L87 Difference]: Start difference. First operand 4624 states and 12319 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:33,389 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-08-12 17:51:33,573 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:51:33,776 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:51:36,257 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:51:36,842 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:51:37,464 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:51:38,127 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:51:38,311 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:51:39,041 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:51:45,997 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:51:46,176 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:51:46,375 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-08-12 17:51:46,544 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:51:46,717 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-08-12 17:51:46,899 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:51:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:51:46,926 INFO L93 Difference]: Finished difference Result 9109 states and 23222 transitions. [2021-08-12 17:51:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-12 17:51:46,927 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:51:46,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:51:46,943 INFO L225 Difference]: With dead ends: 9109 [2021-08-12 17:51:46,943 INFO L226 Difference]: Without dead ends: 9107 [2021-08-12 17:51:46,945 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3582.2ms TimeCoverageRelationStatistics Valid=604, Invalid=1652, Unknown=0, NotChecked=0, Total=2256 [2021-08-12 17:51:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9107 states. [2021-08-12 17:51:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9107 to 4576. [2021-08-12 17:51:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4574 states have (on average 2.661783996501968) internal successors, (12175), 4575 states have internal predecessors, (12175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 12175 transitions. [2021-08-12 17:51:48,180 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 12175 transitions. Word has length 94 [2021-08-12 17:51:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:51:48,180 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 12175 transitions. [2021-08-12 17:51:48,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 12175 transitions. [2021-08-12 17:51:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:51:48,185 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:51:48,185 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:51:48,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-12 17:51:48,185 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:51:48,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:51:48,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1720847629, now seen corresponding path program 32 times [2021-08-12 17:51:48,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:51:48,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119668397] [2021-08-12 17:51:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:51:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:51:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:51:48,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:51:48,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119668397] [2021-08-12 17:51:48,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119668397] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:51:48,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:51:48,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:51:48,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410360073] [2021-08-12 17:51:48,667 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:51:48,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:51:48,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:51:48,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:51:48,668 INFO L87 Difference]: Start difference. First operand 4576 states and 12175 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:51:50,690 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:51:51,042 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:51:51,728 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:51:52,219 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-08-12 17:51:52,790 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:51:53,385 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-08-12 17:51:59,180 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-08-12 17:51:59,326 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-08-12 17:51:59,469 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-08-12 17:51:59,638 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-08-12 17:51:59,907 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:52:00,060 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:52:00,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:52:00,086 INFO L93 Difference]: Finished difference Result 7591 states and 19151 transitions. [2021-08-12 17:52:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-12 17:52:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:52:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:52:00,098 INFO L225 Difference]: With dead ends: 7591 [2021-08-12 17:52:00,098 INFO L226 Difference]: Without dead ends: 7589 [2021-08-12 17:52:00,099 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2752.1ms TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-08-12 17:52:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7589 states. [2021-08-12 17:52:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7589 to 4592. [2021-08-12 17:52:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4590 states have (on average 2.661220043572985) internal successors, (12215), 4591 states have internal predecessors, (12215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 12215 transitions. [2021-08-12 17:52:01,332 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 12215 transitions. Word has length 94 [2021-08-12 17:52:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:52:01,332 INFO L482 AbstractCegarLoop]: Abstraction has 4592 states and 12215 transitions. [2021-08-12 17:52:01,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 12215 transitions. [2021-08-12 17:52:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:52:01,337 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:52:01,337 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:52:01,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-12 17:52:01,337 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:52:01,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:52:01,337 INFO L82 PathProgramCache]: Analyzing trace with hash -805583913, now seen corresponding path program 33 times [2021-08-12 17:52:01,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:52:01,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536228504] [2021-08-12 17:52:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:52:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:52:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:52:01,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:52:01,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536228504] [2021-08-12 17:52:01,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536228504] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:52:01,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:52:01,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:52:01,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458223197] [2021-08-12 17:52:01,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:52:01,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:52:01,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:52:01,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:52:01,955 INFO L87 Difference]: Start difference. First operand 4592 states and 12215 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:04,306 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:52:04,998 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:52:05,482 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:52:06,049 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:52:06,232 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:52:06,829 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:52:14,093 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-08-12 17:52:14,239 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-08-12 17:52:14,397 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-08-12 17:52:14,662 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:52:14,809 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:52:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:52:14,837 INFO L93 Difference]: Finished difference Result 7934 states and 19851 transitions. [2021-08-12 17:52:14,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-12 17:52:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:52:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:52:14,853 INFO L225 Difference]: With dead ends: 7934 [2021-08-12 17:52:14,854 INFO L226 Difference]: Without dead ends: 7932 [2021-08-12 17:52:14,855 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3000.4ms TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2021-08-12 17:52:14,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7932 states. [2021-08-12 17:52:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7932 to 4588. [2021-08-12 17:52:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 4586 states have (on average 2.6613606628870476) internal successors, (12205), 4587 states have internal predecessors, (12205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 12205 transitions. [2021-08-12 17:52:16,132 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 12205 transitions. Word has length 94 [2021-08-12 17:52:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:52:16,133 INFO L482 AbstractCegarLoop]: Abstraction has 4588 states and 12205 transitions. [2021-08-12 17:52:16,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 12205 transitions. [2021-08-12 17:52:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:52:16,138 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:52:16,138 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:52:16,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-12 17:52:16,138 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:52:16,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:52:16,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1340836083, now seen corresponding path program 34 times [2021-08-12 17:52:16,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:52:16,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328146573] [2021-08-12 17:52:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:52:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:52:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:52:16,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:52:16,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328146573] [2021-08-12 17:52:16,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328146573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:52:16,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:52:16,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:52:16,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295408907] [2021-08-12 17:52:16,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:52:16,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:52:16,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:52:16,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:52:16,691 INFO L87 Difference]: Start difference. First operand 4588 states and 12205 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:19,097 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:52:19,515 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:52:19,969 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:52:20,483 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:52:21,046 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:52:21,233 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:52:21,871 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:52:29,601 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-08-12 17:52:29,746 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-08-12 17:52:29,907 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-08-12 17:52:30,031 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:52:30,179 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:52:30,331 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:52:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:52:30,390 INFO L93 Difference]: Finished difference Result 8021 states and 20052 transitions. [2021-08-12 17:52:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-12 17:52:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:52:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:52:30,402 INFO L225 Difference]: With dead ends: 8021 [2021-08-12 17:52:30,402 INFO L226 Difference]: Without dead ends: 8019 [2021-08-12 17:52:30,403 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3110.8ms TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2021-08-12 17:52:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8019 states. [2021-08-12 17:52:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8019 to 4580. [2021-08-12 17:52:31,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.661642638706859) internal successors, (12185), 4579 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:31,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12185 transitions. [2021-08-12 17:52:31,665 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12185 transitions. Word has length 94 [2021-08-12 17:52:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:52:31,666 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12185 transitions. [2021-08-12 17:52:31,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12185 transitions. [2021-08-12 17:52:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:52:31,671 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:52:31,671 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:52:31,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-12 17:52:31,671 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:52:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:52:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1764516877, now seen corresponding path program 35 times [2021-08-12 17:52:31,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:52:31,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455775573] [2021-08-12 17:52:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:52:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:52:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:52:32,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:52:32,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455775573] [2021-08-12 17:52:32,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455775573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:52:32,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:52:32,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:52:32,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127875110] [2021-08-12 17:52:32,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:52:32,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:52:32,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:52:32,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:52:32,218 INFO L87 Difference]: Start difference. First operand 4580 states and 12185 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:34,654 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:52:35,065 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:52:35,216 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:52:35,702 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:52:36,204 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:52:36,760 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:52:36,952 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:52:37,583 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:52:44,089 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-08-12 17:52:44,243 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-08-12 17:52:44,390 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-08-12 17:52:44,555 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-08-12 17:52:44,681 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-08-12 17:52:44,828 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-08-12 17:52:44,981 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-08-12 17:52:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:52:45,010 INFO L93 Difference]: Finished difference Result 7476 states and 18871 transitions. [2021-08-12 17:52:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-12 17:52:45,011 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:52:45,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:52:45,022 INFO L225 Difference]: With dead ends: 7476 [2021-08-12 17:52:45,022 INFO L226 Difference]: Without dead ends: 7474 [2021-08-12 17:52:45,023 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3313.6ms TimeCoverageRelationStatistics Valid=605, Invalid=1747, Unknown=0, NotChecked=0, Total=2352 [2021-08-12 17:52:45,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7474 states. [2021-08-12 17:52:46,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7474 to 4580. [2021-08-12 17:52:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.661642638706859) internal successors, (12185), 4579 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12185 transitions. [2021-08-12 17:52:46,316 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12185 transitions. Word has length 94 [2021-08-12 17:52:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:52:46,316 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12185 transitions. [2021-08-12 17:52:46,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12185 transitions. [2021-08-12 17:52:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:52:46,322 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:52:46,322 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:52:46,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-12 17:52:46,322 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:52:46,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:52:46,322 INFO L82 PathProgramCache]: Analyzing trace with hash 949628105, now seen corresponding path program 6 times [2021-08-12 17:52:46,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:52:46,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734991110] [2021-08-12 17:52:46,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:52:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:52:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:52:46,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:52:46,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734991110] [2021-08-12 17:52:46,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734991110] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:52:46,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:52:46,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-08-12 17:52:46,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462450969] [2021-08-12 17:52:46,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-08-12 17:52:46,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:52:46,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-12 17:52:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-08-12 17:52:46,696 INFO L87 Difference]: Start difference. First operand 4580 states and 12185 transitions. Second operand has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:52:52,225 INFO L93 Difference]: Finished difference Result 4892 states and 12744 transitions. [2021-08-12 17:52:52,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-12 17:52:52,226 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:52:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:52:52,234 INFO L225 Difference]: With dead ends: 4892 [2021-08-12 17:52:52,234 INFO L226 Difference]: Without dead ends: 4768 [2021-08-12 17:52:52,235 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1007.5ms TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-08-12 17:52:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4768 states. [2021-08-12 17:52:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4768 to 4232. [2021-08-12 17:52:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4230 states have (on average 2.661465721040189) internal successors, (11258), 4231 states have internal predecessors, (11258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 11258 transitions. [2021-08-12 17:52:53,519 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 11258 transitions. Word has length 94 [2021-08-12 17:52:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:52:53,519 INFO L482 AbstractCegarLoop]: Abstraction has 4232 states and 11258 transitions. [2021-08-12 17:52:53,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 11258 transitions. [2021-08-12 17:52:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:52:53,523 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:52:53,524 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:52:53,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-12 17:52:53,524 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:52:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:52:53,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2121112213, now seen corresponding path program 36 times [2021-08-12 17:52:53,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:52:53,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555768409] [2021-08-12 17:52:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:52:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:52:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:52:54,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:52:54,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555768409] [2021-08-12 17:52:54,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555768409] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:52:54,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:52:54,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:52:54,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580945883] [2021-08-12 17:52:54,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:52:54,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:52:54,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:52:54,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:52:54,110 INFO L87 Difference]: Start difference. First operand 4232 states and 11258 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:52:54,998 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:52:55,183 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:52:55,329 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:52:55,539 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:52:55,803 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:52:56,087 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-08-12 17:52:56,266 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:52:56,594 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-08-12 17:52:59,350 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:53:00,082 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:53:01,518 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-08-12 17:53:01,710 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:53:02,615 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:53:11,426 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:53:11,638 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-08-12 17:53:11,806 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:53:12,066 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2021-08-12 17:53:12,248 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-08-12 17:53:12,471 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2021-08-12 17:53:12,642 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-08-12 17:53:12,856 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2021-08-12 17:53:13,025 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:53:13,230 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-08-12 17:53:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:53:13,263 INFO L93 Difference]: Finished difference Result 10055 states and 25580 transitions. [2021-08-12 17:53:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-12 17:53:13,263 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:53:13,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:53:13,278 INFO L225 Difference]: With dead ends: 10055 [2021-08-12 17:53:13,278 INFO L226 Difference]: Without dead ends: 10053 [2021-08-12 17:53:13,279 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 5038.5ms TimeCoverageRelationStatistics Valid=882, Invalid=2198, Unknown=0, NotChecked=0, Total=3080 [2021-08-12 17:53:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10053 states. [2021-08-12 17:53:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10053 to 4280. [2021-08-12 17:53:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4280 states, 4278 states have (on average 2.665264142122487) internal successors, (11402), 4279 states have internal predecessors, (11402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 11402 transitions. [2021-08-12 17:53:14,686 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 11402 transitions. Word has length 94 [2021-08-12 17:53:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:53:14,686 INFO L482 AbstractCegarLoop]: Abstraction has 4280 states and 11402 transitions. [2021-08-12 17:53:14,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 11402 transitions. [2021-08-12 17:53:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:53:14,690 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:53:14,690 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:53:14,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-12 17:53:14,691 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:53:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:53:14,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1083292315, now seen corresponding path program 37 times [2021-08-12 17:53:14,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:53:14,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83582702] [2021-08-12 17:53:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:53:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:53:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:53:15,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:53:15,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83582702] [2021-08-12 17:53:15,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83582702] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:53:15,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:53:15,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:53:15,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990492588] [2021-08-12 17:53:15,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:53:15,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:53:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:53:15,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:53:15,321 INFO L87 Difference]: Start difference. First operand 4280 states and 11402 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:16,244 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:53:16,441 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:53:16,590 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:53:16,809 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:53:17,057 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-08-12 17:53:17,376 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-08-12 17:53:20,465 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:53:21,274 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:53:22,133 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:53:23,038 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:53:23,232 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:53:24,212 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:53:34,843 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:53:35,031 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-08-12 17:53:35,199 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:53:35,395 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-08-12 17:53:35,584 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-08-12 17:53:35,789 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-08-12 17:53:35,979 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:53:36,137 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-08-12 17:53:36,331 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-08-12 17:53:36,504 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:53:36,706 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:53:36,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:53:36,747 INFO L93 Difference]: Finished difference Result 10339 states and 26077 transitions. [2021-08-12 17:53:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-12 17:53:36,747 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:53:36,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:53:36,764 INFO L225 Difference]: With dead ends: 10339 [2021-08-12 17:53:36,764 INFO L226 Difference]: Without dead ends: 10337 [2021-08-12 17:53:36,766 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4936.9ms TimeCoverageRelationStatistics Valid=865, Invalid=2215, Unknown=0, NotChecked=0, Total=3080 [2021-08-12 17:53:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2021-08-12 17:53:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 4268. [2021-08-12 17:53:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4268 states, 4266 states have (on average 2.6643225503985) internal successors, (11366), 4267 states have internal predecessors, (11366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 11366 transitions. [2021-08-12 17:53:38,186 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 11366 transitions. Word has length 94 [2021-08-12 17:53:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:53:38,187 INFO L482 AbstractCegarLoop]: Abstraction has 4268 states and 11366 transitions. [2021-08-12 17:53:38,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 11366 transitions. [2021-08-12 17:53:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:53:38,192 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:53:38,192 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:53:38,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-12 17:53:38,192 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:53:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:53:38,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1246645679, now seen corresponding path program 38 times [2021-08-12 17:53:38,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:53:38,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232984562] [2021-08-12 17:53:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:53:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:53:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:53:38,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:53:38,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232984562] [2021-08-12 17:53:38,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232984562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:53:38,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:53:38,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:53:38,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48863570] [2021-08-12 17:53:38,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:53:38,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:53:38,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:53:38,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:53:38,787 INFO L87 Difference]: Start difference. First operand 4268 states and 11366 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:53:39,697 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:53:39,884 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:53:40,028 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:53:40,239 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-08-12 17:53:43,556 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:53:43,711 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:53:44,481 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:53:45,338 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:53:46,254 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:53:46,476 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:53:47,466 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:53:58,623 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:53:58,792 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-08-12 17:53:58,958 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:53:59,134 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-08-12 17:53:59,322 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-08-12 17:53:59,507 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-08-12 17:53:59,679 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:53:59,835 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-08-12 17:54:00,007 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-08-12 17:54:00,177 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:54:00,345 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:54:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:54:00,388 INFO L93 Difference]: Finished difference Result 10383 states and 26175 transitions. [2021-08-12 17:54:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-12 17:54:00,389 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:54:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:54:00,407 INFO L225 Difference]: With dead ends: 10383 [2021-08-12 17:54:00,407 INFO L226 Difference]: Without dead ends: 10381 [2021-08-12 17:54:00,409 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4559.8ms TimeCoverageRelationStatistics Valid=817, Invalid=2153, Unknown=0, NotChecked=0, Total=2970 [2021-08-12 17:54:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10381 states. [2021-08-12 17:54:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10381 to 4244. [2021-08-12 17:54:01,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4244 states, 4242 states have (on average 2.6624233851956625) internal successors, (11294), 4243 states have internal predecessors, (11294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 11294 transitions. [2021-08-12 17:54:01,886 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 11294 transitions. Word has length 94 [2021-08-12 17:54:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:54:01,887 INFO L482 AbstractCegarLoop]: Abstraction has 4244 states and 11294 transitions. [2021-08-12 17:54:01,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 11294 transitions. [2021-08-12 17:54:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:54:01,892 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:54:01,892 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:54:01,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-12 17:54:01,892 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:54:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:54:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash -855319471, now seen corresponding path program 39 times [2021-08-12 17:54:01,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:54:01,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689589954] [2021-08-12 17:54:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:54:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:54:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:54:02,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:54:02,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689589954] [2021-08-12 17:54:02,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689589954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:54:02,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:54:02,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:54:02,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797936991] [2021-08-12 17:54:02,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:54:02,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:54:02,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:54:02,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:54:02,521 INFO L87 Difference]: Start difference. First operand 4244 states and 11294 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:03,289 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-08-12 17:54:03,457 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:54:03,640 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-08-12 17:54:06,183 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:54:06,826 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-08-12 17:54:06,985 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:54:07,734 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-08-12 17:54:08,487 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-08-12 17:54:09,338 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-08-12 17:54:09,525 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-08-12 17:54:10,421 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-08-12 17:54:19,002 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-08-12 17:54:19,169 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-08-12 17:54:19,352 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-08-12 17:54:19,504 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-08-12 17:54:19,663 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-08-12 17:54:19,830 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-08-12 17:54:19,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 17:54:19,861 INFO L93 Difference]: Finished difference Result 8858 states and 22530 transitions. [2021-08-12 17:54:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-12 17:54:19,862 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-12 17:54:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 17:54:19,875 INFO L225 Difference]: With dead ends: 8858 [2021-08-12 17:54:19,875 INFO L226 Difference]: Without dead ends: 8856 [2021-08-12 17:54:19,876 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3581.2ms TimeCoverageRelationStatistics Valid=620, Invalid=1732, Unknown=0, NotChecked=0, Total=2352 [2021-08-12 17:54:19,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8856 states. [2021-08-12 17:54:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8856 to 4232. [2021-08-12 17:54:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4230 states have (on average 2.661465721040189) internal successors, (11258), 4231 states have internal predecessors, (11258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 11258 transitions. [2021-08-12 17:54:21,348 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 11258 transitions. Word has length 94 [2021-08-12 17:54:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 17:54:21,348 INFO L482 AbstractCegarLoop]: Abstraction has 4232 states and 11258 transitions. [2021-08-12 17:54:21,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 11258 transitions. [2021-08-12 17:54:21,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-12 17:54:21,353 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 17:54:21,353 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 17:54:21,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-12 17:54:21,353 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 17:54:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 17:54:21,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1394406491, now seen corresponding path program 40 times [2021-08-12 17:54:21,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 17:54:21,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040444393] [2021-08-12 17:54:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 17:54:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 17:54:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 17:54:21,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 17:54:21,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040444393] [2021-08-12 17:54:21,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040444393] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 17:54:21,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 17:54:21,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-12 17:54:21,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016131251] [2021-08-12 17:54:21,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-08-12 17:54:21,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 17:54:21,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-12 17:54:21,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-08-12 17:54:21,847 INFO L87 Difference]: Start difference. First operand 4232 states and 11258 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 17:54:24,498 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-08-12 17:54:25,348 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-08-12 17:54:25,874 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-08-12 17:54:26,497 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-08-12 17:54:27,114 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 Received shutdown request... [2021-08-12 17:54:29,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-12 17:54:29,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-12 17:54:29,130 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-12 17:54:29,132 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-12 17:54:29,134 WARN L188 ceAbstractionStarter]: Timeout [2021-08-12 17:54:29,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.08 05:54:29 BasicIcfg [2021-08-12 17:54:29,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-12 17:54:29,134 INFO L168 Benchmark]: Toolchain (without parser) took 510346.97 ms. Allocated memory was 197.1 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 159.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 197.1 MB. Free memory is still 179.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1062.42 ms. Allocated memory is still 197.1 MB. Free memory was 159.6 MB in the beginning and 153.5 MB in the end (delta: 6.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.62 ms. Allocated memory is still 197.1 MB. Free memory was 153.5 MB in the beginning and 150.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: Boogie Preprocessor took 34.87 ms. Allocated memory is still 197.1 MB. Free memory was 150.4 MB in the beginning and 147.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: RCFGBuilder took 572.83 ms. Allocated memory is still 197.1 MB. Free memory was 147.8 MB in the beginning and 101.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L168 Benchmark]: TraceAbstraction took 508617.52 ms. Allocated memory was 197.1 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 100.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-12 17:54:29,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 197.1 MB. Free memory is still 179.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1062.42 ms. Allocated memory is still 197.1 MB. Free memory was 159.6 MB in the beginning and 153.5 MB in the end (delta: 6.1 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.62 ms. Allocated memory is still 197.1 MB. Free memory was 153.5 MB in the beginning and 150.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.87 ms. Allocated memory is still 197.1 MB. Free memory was 150.4 MB in the beginning and 147.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 572.83 ms. Allocated memory is still 197.1 MB. Free memory was 147.8 MB in the beginning and 101.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 508617.52 ms. Allocated memory was 197.1 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 100.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4232states) and FLOYD_HOARE automaton (currently 18 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (5319 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4232states) and FLOYD_HOARE automaton (currently 18 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (5319 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4232states) and FLOYD_HOARE automaton (currently 18 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (5319 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (4232states) and FLOYD_HOARE automaton (currently 18 states, 25 states before enhancement),while ReachableStatesComputation was computing reachable states (5319 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 148 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 508468.8ms, OverallIterations: 49, TraceHistogramMax: 1, EmptinessCheckTime: 311.5ms, AutomataDifference: 438737.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 280.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13399 SDtfs, 49687 SDslu, 129070 SDs, 0 SdLazy, 61281 SolverSat, 3856 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32215.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2475 GetRequests, 145 SyntacticMatches, 59 SemanticMatches, 2271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15755 ImplicationChecksByTransitivity, 155386.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5115occurred in iteration=0, InterpolantAutomatonStates: 1470, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 38685.9ms AutomataMinimizationTime, 48 MinimizatonAttempts, 136359 StatesRemovedByMinimization, 47 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 123.5ms SsaConstructionTime, 973.8ms SatisfiabilityAnalysisTime, 28347.3ms InterpolantComputationTime, 4492 NumberOfCodeBlocks, 4492 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 4443 ConstructedInterpolants, 0 QuantifiedInterpolants, 69572 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 49 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown