/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:12:33,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:12:33,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:12:33,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:12:33,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:12:33,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:12:33,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:12:33,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:12:33,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:12:33,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:12:33,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:12:33,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:12:33,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:12:33,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:12:33,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:12:33,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:12:33,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:12:33,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:12:33,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:12:33,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:12:33,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:12:33,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:12:33,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:12:33,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:12:33,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:12:33,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:12:33,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:12:33,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:12:33,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:12:33,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:12:33,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:12:33,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:12:33,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:12:33,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:12:33,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:12:33,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:12:33,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:12:33,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:12:33,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:12:33,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:12:33,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:12:33,609 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:12:33,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:12:33,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:12:33,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:12:33,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:12:33,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:12:33,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:12:33,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:12:33,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:12:33,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:12:33,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:12:33,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:12:33,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:12:33,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:12:33,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:12:33,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:12:33,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:12:33,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:12:33,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:12:33,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:12:33,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:12:33,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:12:33,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:12:33,615 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:12:33,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:12:33,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:12:33,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:12:33,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:12:33,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:12:33,947 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:12:33,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-05 23:12:34,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bc21552/3e69cf38b89e4470900d858327fe8b14/FLAGd1855f094 [2020-10-05 23:12:34,525 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:12:34,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-05 23:12:34,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bc21552/3e69cf38b89e4470900d858327fe8b14/FLAGd1855f094 [2020-10-05 23:12:34,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bc21552/3e69cf38b89e4470900d858327fe8b14 [2020-10-05 23:12:34,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:12:34,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:12:34,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:12:34,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:12:34,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:12:34,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:12:34" (1/1) ... [2020-10-05 23:12:34,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7c1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:34, skipping insertion in model container [2020-10-05 23:12:34,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:12:34" (1/1) ... [2020-10-05 23:12:34,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:12:34,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:12:35,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:12:35,437 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:12:35,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:12:35,557 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:12:35,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35 WrapperNode [2020-10-05 23:12:35,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:12:35,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:12:35,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:12:35,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:12:35,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:12:35,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:12:35,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:12:35,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:12:35,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (1/1) ... [2020-10-05 23:12:35,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:12:35,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:12:35,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:12:35,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:12:35,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (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 [2020-10-05 23:12:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-05 23:12:35,709 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-05 23:12:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 23:12:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-05 23:12:35,709 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-05 23:12:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:12:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-05 23:12:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:12:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:12:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-05 23:12:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:12:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:12:35,712 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:12:36,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:12:36,089 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-05 23:12:36,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:12:36 BoogieIcfgContainer [2020-10-05 23:12:36,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:12:36,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:12:36,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:12:36,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:12:36,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:12:34" (1/3) ... [2020-10-05 23:12:36,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cd9426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:12:36, skipping insertion in model container [2020-10-05 23:12:36,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:12:35" (2/3) ... [2020-10-05 23:12:36,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cd9426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:12:36, skipping insertion in model container [2020-10-05 23:12:36,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:12:36" (3/3) ... [2020-10-05 23:12:36,101 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-05 23:12:36,112 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:12:36,112 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:12:36,120 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 23:12:36,121 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:12:36,151 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,151 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,151 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,152 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,152 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,152 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,153 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,153 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,154 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,154 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,155 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,155 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,156 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,156 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,156 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,156 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,157 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,157 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,164 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,165 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,165 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,165 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,165 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,166 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,173 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,173 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,174 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,174 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,174 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:12:36,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 23:12:36,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:12:36,219 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:12:36,219 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:12:36,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:12:36,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:12:36,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:12:36,220 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:12:36,220 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:12:36,235 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 190 flow [2020-10-05 23:12:36,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-05 23:12:36,285 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-05 23:12:36,286 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:12:36,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-10-05 23:12:36,294 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-05 23:12:36,334 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-05 23:12:36,335 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:12:36,338 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-10-05 23:12:36,339 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 886 [2020-10-05 23:12:36,342 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:12:37,781 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-05 23:12:38,298 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2020-10-05 23:12:38,488 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-05 23:12:38,498 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2843 [2020-10-05 23:12:38,498 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-10-05 23:12:38,502 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 32 transitions, 86 flow [2020-10-05 23:12:38,523 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 218 states. [2020-10-05 23:12:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-10-05 23:12:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 23:12:38,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:38,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 23:12:38,534 INFO L427 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash 293912045, now seen corresponding path program 1 times [2020-10-05 23:12:38,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:38,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741296649] [2020-10-05 23:12:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:38,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741296649] [2020-10-05 23:12:38,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:38,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:12:38,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497472868] [2020-10-05 23:12:38,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:12:38,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:38,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:12:38,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:38,756 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 3 states. [2020-10-05 23:12:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:38,792 INFO L93 Difference]: Finished difference Result 218 states and 483 transitions. [2020-10-05 23:12:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:38,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 23:12:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:38,808 INFO L225 Difference]: With dead ends: 218 [2020-10-05 23:12:38,808 INFO L226 Difference]: Without dead ends: 188 [2020-10-05 23:12:38,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:38,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-05 23:12:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-05 23:12:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-05 23:12:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 412 transitions. [2020-10-05 23:12:38,869 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 412 transitions. Word has length 5 [2020-10-05 23:12:38,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:38,869 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 412 transitions. [2020-10-05 23:12:38,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:12:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 412 transitions. [2020-10-05 23:12:38,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:12:38,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:38,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:38,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:12:38,872 INFO L427 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:38,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2033676981, now seen corresponding path program 1 times [2020-10-05 23:12:38,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:38,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88292813] [2020-10-05 23:12:38,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:38,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88292813] [2020-10-05 23:12:38,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:38,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:12:38,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394356929] [2020-10-05 23:12:38,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:12:38,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:38,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:12:38,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:38,937 INFO L87 Difference]: Start difference. First operand 188 states and 412 transitions. Second operand 3 states. [2020-10-05 23:12:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:38,961 INFO L93 Difference]: Finished difference Result 207 states and 431 transitions. [2020-10-05 23:12:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:38,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:12:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:38,963 INFO L225 Difference]: With dead ends: 207 [2020-10-05 23:12:38,963 INFO L226 Difference]: Without dead ends: 175 [2020-10-05 23:12:38,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-05 23:12:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-10-05 23:12:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-05 23:12:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 339 transitions. [2020-10-05 23:12:38,991 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 339 transitions. Word has length 8 [2020-10-05 23:12:38,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:38,993 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 339 transitions. [2020-10-05 23:12:38,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:12:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 339 transitions. [2020-10-05 23:12:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:12:38,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:38,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:38,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:12:38,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:38,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1494763716, now seen corresponding path program 1 times [2020-10-05 23:12:38,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:38,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066389408] [2020-10-05 23:12:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:39,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066389408] [2020-10-05 23:12:39,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:39,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:12:39,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535288592] [2020-10-05 23:12:39,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:12:39,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:39,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:12:39,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:39,081 INFO L87 Difference]: Start difference. First operand 157 states and 339 transitions. Second operand 3 states. [2020-10-05 23:12:39,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:39,105 INFO L93 Difference]: Finished difference Result 154 states and 316 transitions. [2020-10-05 23:12:39,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:39,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:12:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:39,107 INFO L225 Difference]: With dead ends: 154 [2020-10-05 23:12:39,107 INFO L226 Difference]: Without dead ends: 100 [2020-10-05 23:12:39,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:39,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-05 23:12:39,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-10-05 23:12:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-05 23:12:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 189 transitions. [2020-10-05 23:12:39,117 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 189 transitions. Word has length 8 [2020-10-05 23:12:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:39,117 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 189 transitions. [2020-10-05 23:12:39,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:12:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 189 transitions. [2020-10-05 23:12:39,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:12:39,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:39,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:39,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:12:39,122 INFO L427 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:39,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:39,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1061881055, now seen corresponding path program 1 times [2020-10-05 23:12:39,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:39,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514198491] [2020-10-05 23:12:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:39,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514198491] [2020-10-05 23:12:39,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:39,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:12:39,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880213554] [2020-10-05 23:12:39,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:12:39,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:12:39,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:39,184 INFO L87 Difference]: Start difference. First operand 100 states and 189 transitions. Second operand 3 states. [2020-10-05 23:12:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:39,191 INFO L93 Difference]: Finished difference Result 100 states and 183 transitions. [2020-10-05 23:12:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:39,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-05 23:12:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:39,193 INFO L225 Difference]: With dead ends: 100 [2020-10-05 23:12:39,193 INFO L226 Difference]: Without dead ends: 82 [2020-10-05 23:12:39,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-05 23:12:39,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-05 23:12:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-05 23:12:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 147 transitions. [2020-10-05 23:12:39,200 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 147 transitions. Word has length 13 [2020-10-05 23:12:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:39,200 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 147 transitions. [2020-10-05 23:12:39,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:12:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 147 transitions. [2020-10-05 23:12:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:12:39,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:39,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:39,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:12:39,202 INFO L427 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:39,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:39,202 INFO L82 PathProgramCache]: Analyzing trace with hash -234834685, now seen corresponding path program 2 times [2020-10-05 23:12:39,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:39,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905234714] [2020-10-05 23:12:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:39,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905234714] [2020-10-05 23:12:39,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:39,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:12:39,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796246147] [2020-10-05 23:12:39,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:12:39,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:39,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:12:39,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:12:39,250 INFO L87 Difference]: Start difference. First operand 82 states and 147 transitions. Second operand 4 states. [2020-10-05 23:12:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:39,266 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2020-10-05 23:12:39,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:39,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 23:12:39,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:39,267 INFO L225 Difference]: With dead ends: 26 [2020-10-05 23:12:39,267 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:12:39,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:12:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:12:39,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:12:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:12:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:12:39,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-05 23:12:39,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:39,268 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:12:39,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:12:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:12:39,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:12:39,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:12:39,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:12:39 BasicIcfg [2020-10-05 23:12:39,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:12:39,275 INFO L168 Benchmark]: Toolchain (without parser) took 4390.77 ms. Allocated memory was 148.4 MB in the beginning and 246.4 MB in the end (delta: 98.0 MB). Free memory was 103.0 MB in the beginning and 141.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,276 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.50 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 164.2 MB in the end (delta: -61.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 205.5 MB. Free memory was 164.2 MB in the beginning and 162.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,279 INFO L168 Benchmark]: Boogie Preprocessor took 26.16 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 160.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,279 INFO L168 Benchmark]: RCFGBuilder took 458.17 ms. Allocated memory is still 205.5 MB. Free memory was 160.6 MB in the beginning and 136.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,280 INFO L168 Benchmark]: TraceAbstraction took 3179.88 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 135.4 MB in the beginning and 141.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:39,285 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.50 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 164.2 MB in the end (delta: -61.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.68 ms. Allocated memory is still 205.5 MB. Free memory was 164.2 MB in the beginning and 162.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.16 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 160.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.17 ms. Allocated memory is still 205.5 MB. Free memory was 160.6 MB in the beginning and 136.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3179.88 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 135.4 MB in the beginning and 141.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 84 ProgramPointsBefore, 35 ProgramPointsAfterwards, 84 TransitionsBefore, 32 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 390 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2843 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 131 SDtfs, 72 SDslu, 74 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 694 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...