/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 09:37:55,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 09:37:55,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 09:37:55,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 09:37:55,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 09:37:55,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 09:37:55,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 09:37:55,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 09:37:55,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 09:37:55,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 09:37:55,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 09:37:55,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 09:37:55,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 09:37:55,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 09:37:55,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 09:37:55,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 09:37:55,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 09:37:55,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 09:37:55,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 09:37:55,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 09:37:55,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 09:37:55,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 09:37:55,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 09:37:55,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 09:37:55,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 09:37:55,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 09:37:55,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 09:37:55,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 09:37:55,082 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-SemanticLbe.epf [2021-03-11 09:37:55,105 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 09:37:55,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 09:37:55,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 09:37:55,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 09:37:55,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 09:37:55,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 09:37:55,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:37:55,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 09:37:55,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 09:37:55,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 09:37:55,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 09:37:55,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 09:37:55,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 09:37:55,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 09:37:55,356 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 09:37:55,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2021-03-11 09:37:55,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e888d0/f7c41dd2d66a4bcca90d62e61d404918/FLAGf2f82b8e7 [2021-03-11 09:37:55,777 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 09:37:55,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2021-03-11 09:37:55,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e888d0/f7c41dd2d66a4bcca90d62e61d404918/FLAGf2f82b8e7 [2021-03-11 09:37:56,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8e888d0/f7c41dd2d66a4bcca90d62e61d404918 [2021-03-11 09:37:56,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 09:37:56,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 09:37:56,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 09:37:56,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 09:37:56,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 09:37:56,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26441191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56, skipping insertion in model container [2021-03-11 09:37:56,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 09:37:56,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 09:37:56,370 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2021-03-11 09:37:56,375 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2021-03-11 09:37:56,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:37:56,387 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 09:37:56,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2021-03-11 09:37:56,436 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2021-03-11 09:37:56,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:37:56,489 INFO L208 MainTranslator]: Completed translation [2021-03-11 09:37:56,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56 WrapperNode [2021-03-11 09:37:56,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 09:37:56,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 09:37:56,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 09:37:56,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 09:37:56,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 09:37:56,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 09:37:56,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 09:37:56,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 09:37:56,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (1/1) ... [2021-03-11 09:37:56,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 09:37:56,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 09:37:56,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 09:37:56,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 09:37:56,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (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 [2021-03-11 09:37:56,626 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2021-03-11 09:37:56,627 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2021-03-11 09:37:56,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 09:37:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2021-03-11 09:37:56,628 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2021-03-11 09:37:56,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 09:37:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 09:37:56,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 09:37:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 09:37:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 09:37:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 09:37:56,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 09:37:56,631 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 09:37:56,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 09:37:56,973 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-11 09:37:56,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:37:56 BoogieIcfgContainer [2021-03-11 09:37:56,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 09:37:56,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 09:37:56,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 09:37:56,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 09:37:56,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:37:56" (1/3) ... [2021-03-11 09:37:56,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f606e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:37:56, skipping insertion in model container [2021-03-11 09:37:56,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:56" (2/3) ... [2021-03-11 09:37:56,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f606e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:37:56, skipping insertion in model container [2021-03-11 09:37:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:37:56" (3/3) ... [2021-03-11 09:37:56,979 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2021-03-11 09:37:56,983 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 09:37:56,983 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 09:37:56,986 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 09:37:56,986 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 09:37:57,006 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,007 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,008 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,009 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,009 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,009 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,009 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,009 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,010 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,011 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,012 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,013 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,013 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,013 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,013 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,013 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,014 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,016 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,017 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,017 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,017 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,017 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:57,021 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 09:37:57,032 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 09:37:57,043 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 09:37:57,043 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 09:37:57,043 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 09:37:57,043 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 09:37:57,043 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 09:37:57,043 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 09:37:57,043 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 09:37:57,044 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 09:37:57,051 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 09:37:57,057 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 90 transitions, 202 flow [2021-03-11 09:37:57,059 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 90 transitions, 202 flow [2021-03-11 09:37:57,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 90 transitions, 202 flow [2021-03-11 09:37:57,083 INFO L129 PetriNetUnfolder]: 6/90 cut-off events. [2021-03-11 09:37:57,084 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 09:37:57,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 90 events. 6/90 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-03-11 09:37:57,087 INFO L116 LiptonReduction]: Number of co-enabled transitions 976 [2021-03-11 09:37:59,597 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-03-11 09:37:59,734 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-03-11 09:38:00,024 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2021-03-11 09:38:00,169 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-03-11 09:38:00,610 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 140 [2021-03-11 09:38:00,790 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-03-11 09:38:01,241 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2021-03-11 09:38:01,444 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-03-11 09:38:01,466 INFO L131 LiptonReduction]: Checked pairs total: 3976 [2021-03-11 09:38:01,466 INFO L133 LiptonReduction]: Total number of compositions: 77 [2021-03-11 09:38:01,472 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2021-03-11 09:38:01,488 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 197 states, 193 states have (on average 2.5544041450777204) internal successors, (493), 196 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 193 states have (on average 2.5544041450777204) internal successors, (493), 196 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 09:38:01,493 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:38:01,494 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 09:38:01,494 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:38:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:38:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash 324820790, now seen corresponding path program 1 times [2021-03-11 09:38:01,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:38:01,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206533225] [2021-03-11 09:38:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:38:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:38:01,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:38:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:38:01,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206533225] [2021-03-11 09:38:01,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:38:01,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:38:01,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141311173] [2021-03-11 09:38:01,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:38:01,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:38:01,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:38:01,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,671 INFO L87 Difference]: Start difference. First operand has 197 states, 193 states have (on average 2.5544041450777204) internal successors, (493), 196 states have internal predecessors, (493), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:38:01,714 INFO L93 Difference]: Finished difference Result 237 states and 507 transitions. [2021-03-11 09:38:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:38:01,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-03-11 09:38:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:38:01,725 INFO L225 Difference]: With dead ends: 237 [2021-03-11 09:38:01,725 INFO L226 Difference]: Without dead ends: 130 [2021-03-11 09:38:01,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-03-11 09:38:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 116. [2021-03-11 09:38:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 113 states have (on average 2.106194690265487) internal successors, (238), 115 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 238 transitions. [2021-03-11 09:38:01,755 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 238 transitions. Word has length 5 [2021-03-11 09:38:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:38:01,756 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 238 transitions. [2021-03-11 09:38:01,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 238 transitions. [2021-03-11 09:38:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-03-11 09:38:01,756 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:38:01,756 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:38:01,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 09:38:01,757 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:38:01,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:38:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1397486624, now seen corresponding path program 1 times [2021-03-11 09:38:01,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:38:01,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098342968] [2021-03-11 09:38:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:38:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:38:01,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:01,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:38:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:38:01,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098342968] [2021-03-11 09:38:01,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:38:01,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:38:01,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527110736] [2021-03-11 09:38:01,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:38:01,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:38:01,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:38:01,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,805 INFO L87 Difference]: Start difference. First operand 116 states and 238 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:38:01,818 INFO L93 Difference]: Finished difference Result 109 states and 206 transitions. [2021-03-11 09:38:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:38:01,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-03-11 09:38:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:38:01,819 INFO L225 Difference]: With dead ends: 109 [2021-03-11 09:38:01,819 INFO L226 Difference]: Without dead ends: 84 [2021-03-11 09:38:01,819 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-03-11 09:38:01,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-03-11 09:38:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.962962962962963) internal successors, (159), 83 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 159 transitions. [2021-03-11 09:38:01,825 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 159 transitions. Word has length 7 [2021-03-11 09:38:01,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:38:01,825 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 159 transitions. [2021-03-11 09:38:01,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 159 transitions. [2021-03-11 09:38:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 09:38:01,826 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:38:01,826 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:38:01,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 09:38:01,826 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:38:01,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:38:01,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1336950869, now seen corresponding path program 1 times [2021-03-11 09:38:01,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:38:01,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100280966] [2021-03-11 09:38:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:38:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:38:01,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:38:01,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:38:01,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100280966] [2021-03-11 09:38:01,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:38:01,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:38:01,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420702139] [2021-03-11 09:38:01,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:38:01,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:38:01,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:38:01,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,876 INFO L87 Difference]: Start difference. First operand 84 states and 159 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:38:01,882 INFO L93 Difference]: Finished difference Result 84 states and 151 transitions. [2021-03-11 09:38:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:38:01,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 09:38:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:38:01,884 INFO L225 Difference]: With dead ends: 84 [2021-03-11 09:38:01,884 INFO L226 Difference]: Without dead ends: 84 [2021-03-11 09:38:01,884 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-03-11 09:38:01,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-03-11 09:38:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.8641975308641976) internal successors, (151), 83 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2021-03-11 09:38:01,889 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 9 [2021-03-11 09:38:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:38:01,889 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2021-03-11 09:38:01,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2021-03-11 09:38:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 09:38:01,890 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:38:01,890 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:38:01,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 09:38:01,890 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:38:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:38:01,890 INFO L82 PathProgramCache]: Analyzing trace with hash -2064400989, now seen corresponding path program 1 times [2021-03-11 09:38:01,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:38:01,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754319758] [2021-03-11 09:38:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:38:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:38:01,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:01,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:38:01,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:01,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:01,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:38:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:38:01,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754319758] [2021-03-11 09:38:01,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:38:01,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 09:38:01,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854655949] [2021-03-11 09:38:01,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 09:38:01,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:38:01,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 09:38:01,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:38:01,926 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:38:01,956 INFO L93 Difference]: Finished difference Result 76 states and 127 transitions. [2021-03-11 09:38:01,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:38:01,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-03-11 09:38:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:38:01,957 INFO L225 Difference]: With dead ends: 76 [2021-03-11 09:38:01,957 INFO L226 Difference]: Without dead ends: 68 [2021-03-11 09:38:01,957 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 09:38:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-03-11 09:38:01,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-03-11 09:38:01,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.7076923076923076) internal successors, (111), 67 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 111 transitions. [2021-03-11 09:38:01,965 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 111 transitions. Word has length 12 [2021-03-11 09:38:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:38:01,966 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 111 transitions. [2021-03-11 09:38:01,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 111 transitions. [2021-03-11 09:38:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 09:38:01,966 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:38:01,966 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:38:01,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 09:38:01,966 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:38:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:38:01,967 INFO L82 PathProgramCache]: Analyzing trace with hash 298554188, now seen corresponding path program 1 times [2021-03-11 09:38:01,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:38:01,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579932061] [2021-03-11 09:38:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:38:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:38:02,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:02,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:02,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:02,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:38:02,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:38:02,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:38:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:38:02,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579932061] [2021-03-11 09:38:02,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:38:02,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 09:38:02,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445462439] [2021-03-11 09:38:02,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:38:02,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:38:02,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:38:02,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:02,021 INFO L87 Difference]: Start difference. First operand 68 states and 111 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:38:02,025 INFO L93 Difference]: Finished difference Result 26 states and 40 transitions. [2021-03-11 09:38:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:38:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-03-11 09:38:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:38:02,027 INFO L225 Difference]: With dead ends: 26 [2021-03-11 09:38:02,027 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 09:38:02,027 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:38:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 09:38:02,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 09:38:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 09:38:02,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-03-11 09:38:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:38:02,028 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 09:38:02,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:38:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 09:38:02,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 09:38:02,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 09:38:02,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:38:02 BasicIcfg [2021-03-11 09:38:02,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 09:38:02,031 INFO L168 Benchmark]: Toolchain (without parser) took 5904.26 ms. Allocated memory was 327.2 MB in the beginning and 394.3 MB in the end (delta: 67.1 MB). Free memory was 290.2 MB in the beginning and 250.7 MB in the end (delta: 39.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,032 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 327.2 MB. Free memory was 308.1 MB in the beginning and 308.0 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:38:02,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.92 ms. Allocated memory is still 327.2 MB. Free memory was 289.6 MB in the beginning and 290.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.19 ms. Allocated memory is still 327.2 MB. Free memory was 290.9 MB in the beginning and 288.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,033 INFO L168 Benchmark]: Boogie Preprocessor took 25.72 ms. Allocated memory is still 327.2 MB. Free memory was 288.8 MB in the beginning and 287.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,033 INFO L168 Benchmark]: RCFGBuilder took 411.54 ms. Allocated memory is still 327.2 MB. Free memory was 287.8 MB in the beginning and 261.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,033 INFO L168 Benchmark]: TraceAbstraction took 5055.49 ms. Allocated memory was 327.2 MB in the beginning and 394.3 MB in the end (delta: 67.1 MB). Free memory was 261.5 MB in the beginning and 250.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 79.0 MB. Max. memory is 16.0 GB. [2021-03-11 09:38:02,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 327.2 MB. Free memory was 308.1 MB in the beginning and 308.0 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 358.92 ms. Allocated memory is still 327.2 MB. Free memory was 289.6 MB in the beginning and 290.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.19 ms. Allocated memory is still 327.2 MB. Free memory was 290.9 MB in the beginning and 288.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.72 ms. Allocated memory is still 327.2 MB. Free memory was 288.8 MB in the beginning and 287.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 411.54 ms. Allocated memory is still 327.2 MB. Free memory was 287.8 MB in the beginning and 261.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5055.49 ms. Allocated memory was 327.2 MB in the beginning and 394.3 MB in the end (delta: 67.1 MB). Free memory was 261.5 MB in the beginning and 250.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 79.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4407.8ms, 90 PlacesBefore, 34 PlacesAfterwards, 90 TransitionsBefore, 33 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 3976 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2489, positive: 2333, positive conditional: 0, positive unconditional: 2333, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 801, positive: 772, positive conditional: 0, positive unconditional: 772, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 801, positive: 727, positive conditional: 0, positive unconditional: 727, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2489, positive: 1561, positive conditional: 0, positive unconditional: 1561, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 801, unknown conditional: 0, unknown unconditional: 801] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4987.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 125.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4444.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 121 SDtfs, 64 SDslu, 68 SDs, 0 SdLazy, 36 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.5ms SsaConstructionTime, 95.7ms SatisfiabilityAnalysisTime, 162.0ms InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...