/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:11:16,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:11:16,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:11:16,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:11:16,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:11:16,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:11:16,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:11:16,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:11:16,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:11:16,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:11:16,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:11:16,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:11:16,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:11:16,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:11:16,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:11:16,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:11:16,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:11:16,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:11:16,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:11:16,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:11:16,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:11:16,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:11:16,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:11:16,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:11:16,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:11:16,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:11:16,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:11:16,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:11:16,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:11:16,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:11:16,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:11:16,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:11:16,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:11:17,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:11:17,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:11:17,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:11:17,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:11:17,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:11:17,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:11:17,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:11:17,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:11:17,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 16:11:17,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:11:17,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:11:17,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:11:17,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:11:17,020 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:11:17,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:11:17,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:11:17,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:11:17,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:11:17,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:11:17,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:11:17,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:11:17,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:11:17,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:11:17,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:11:17,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:11:17,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:11:17,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:11:17,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:11:17,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:11:17,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:11:17,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:11:17,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:11:17,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:11:17,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:11:17,024 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:11:17,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:11:17,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:11:17,025 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:11:17,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:11:17,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:11:17,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:11:17,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:11:17,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:11:17,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:11:17,354 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:11:17,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-04-18 16:11:17,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5522f79/28bc531c74404eccb1a7469c8d93f2f3/FLAGee4b81737 [2020-04-18 16:11:17,950 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:11:17,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-04-18 16:11:17,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5522f79/28bc531c74404eccb1a7469c8d93f2f3/FLAGee4b81737 [2020-04-18 16:11:18,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5522f79/28bc531c74404eccb1a7469c8d93f2f3 [2020-04-18 16:11:18,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:11:18,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:11:18,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:11:18,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:11:18,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:11:18,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:18,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd75ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18, skipping insertion in model container [2020-04-18 16:11:18,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:18,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:11:18,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:11:18,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:11:18,814 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:11:18,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:11:18,971 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:11:18,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18 WrapperNode [2020-04-18 16:11:18,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:11:18,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:11:18,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:11:18,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:11:18,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:18,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:11:19,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:11:19,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:11:19,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:11:19,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (1/1) ... [2020-04-18 16:11:19,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:11:19,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:11:19,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:11:19,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:11:19,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (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 [2020-04-18 16:11:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-04-18 16:11:19,105 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-04-18 16:11:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:11:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-04-18 16:11:19,106 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-04-18 16:11:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:11:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 16:11:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:11:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:11:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:11:19,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:11:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:11:19,111 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:11:19,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:11:19,561 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 16:11:19,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:11:19 BoogieIcfgContainer [2020-04-18 16:11:19,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:11:19,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:11:19,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:11:19,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:11:19,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:11:18" (1/3) ... [2020-04-18 16:11:19,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1a236a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:11:19, skipping insertion in model container [2020-04-18 16:11:19,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:11:18" (2/3) ... [2020-04-18 16:11:19,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1a236a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:11:19, skipping insertion in model container [2020-04-18 16:11:19,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:11:19" (3/3) ... [2020-04-18 16:11:19,574 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-04-18 16:11:19,585 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:11:19,585 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:11:19,594 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:11:19,595 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:11:19,623 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,624 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,624 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,625 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,625 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,625 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,626 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,626 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,627 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,627 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,628 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,628 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,628 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,629 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,629 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,629 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,630 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,630 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,635 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,635 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,635 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,636 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,636 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,637 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,642 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,643 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,643 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,643 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,643 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:11:19,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 16:11:19,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:11:19,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:11:19,695 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:11:19,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:11:19,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:11:19,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:11:19,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:11:19,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:11:19,720 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 84 transitions, 190 flow [2020-04-18 16:11:19,769 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 790 states. [2020-04-18 16:11:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states. [2020-04-18 16:11:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 16:11:19,782 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:11:19,784 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:11:19,784 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]=== [2020-04-18 16:11:19,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:19,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1013860672, now seen corresponding path program 1 times [2020-04-18 16:11:19,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:11:19,799 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [254547522] [2020-04-18 16:11:19,815 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:19,828 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 16:11:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 16:11:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 16:11:19,832 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:11:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:19,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1013860672, now seen corresponding path program 2 times [2020-04-18 16:11:19,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:19,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862246534] [2020-04-18 16:11:19,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:20,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862246534] [2020-04-18 16:11:20,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:20,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:11:20,177 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:20,186 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,202 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 16:11:20,203 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:20,214 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:11:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,221 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-04-18 16:11:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,228 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 16:11:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 16:11:20,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:20,230 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [254547522] [2020-04-18 16:11:20,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:11:20,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:11:20,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [254547522] [2020-04-18 16:11:20,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:11:20,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:11:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,254 INFO L87 Difference]: Start difference. First operand 790 states. Second operand 3 states. [2020-04-18 16:11:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,286 INFO L93 Difference]: Finished difference Result 790 states and 1907 transitions. [2020-04-18 16:11:20,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:11:20,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-04-18 16:11:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:11:20,311 INFO L225 Difference]: With dead ends: 790 [2020-04-18 16:11:20,312 INFO L226 Difference]: Without dead ends: 708 [2020-04-18 16:11:20,313 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-04-18 16:11:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2020-04-18 16:11:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2020-04-18 16:11:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1705 transitions. [2020-04-18 16:11:20,434 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1705 transitions. Word has length 37 [2020-04-18 16:11:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:11:20,434 INFO L479 AbstractCegarLoop]: Abstraction has 708 states and 1705 transitions. [2020-04-18 16:11:20,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:11:20,435 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1705 transitions. [2020-04-18 16:11:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 16:11:20,437 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:11:20,437 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:11:20,438 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]=== [2020-04-18 16:11:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,438 INFO L82 PathProgramCache]: Analyzing trace with hash 222356983, now seen corresponding path program 1 times [2020-04-18 16:11:20,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:11:20,439 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1026082794] [2020-04-18 16:11:20,440 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,442 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 40 transitions. [2020-04-18 16:11:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-04-18 16:11:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 16:11:20,444 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:11:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,444 INFO L82 PathProgramCache]: Analyzing trace with hash 222356983, now seen corresponding path program 2 times [2020-04-18 16:11:20,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:20,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352963661] [2020-04-18 16:11:20,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:20,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352963661] [2020-04-18 16:11:20,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:20,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:11:20,552 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:20,559 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,569 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 40 transitions. [2020-04-18 16:11:20,569 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:20,580 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:11:20,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,581 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-04-18 16:11:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,588 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2020-04-18 16:11:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2020-04-18 16:11:20,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:20,589 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1026082794] [2020-04-18 16:11:20,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:11:20,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:11:20,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1026082794] [2020-04-18 16:11:20,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:11:20,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:11:20,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,592 INFO L87 Difference]: Start difference. First operand 708 states and 1705 transitions. Second operand 3 states. [2020-04-18 16:11:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,632 INFO L93 Difference]: Finished difference Result 717 states and 1676 transitions. [2020-04-18 16:11:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:11:20,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-04-18 16:11:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:11:20,639 INFO L225 Difference]: With dead ends: 717 [2020-04-18 16:11:20,640 INFO L226 Difference]: Without dead ends: 615 [2020-04-18 16:11:20,641 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-04-18 16:11:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 570. [2020-04-18 16:11:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-04-18 16:11:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1352 transitions. [2020-04-18 16:11:20,683 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1352 transitions. Word has length 40 [2020-04-18 16:11:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:11:20,684 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 1352 transitions. [2020-04-18 16:11:20,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:11:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1352 transitions. [2020-04-18 16:11:20,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 16:11:20,693 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:11:20,693 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:11:20,694 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]=== [2020-04-18 16:11:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,694 INFO L82 PathProgramCache]: Analyzing trace with hash 802211903, now seen corresponding path program 1 times [2020-04-18 16:11:20,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:11:20,695 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [55783581] [2020-04-18 16:11:20,697 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,698 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 42 transitions. [2020-04-18 16:11:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-04-18 16:11:20,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 16:11:20,701 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:11:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,702 INFO L82 PathProgramCache]: Analyzing trace with hash 802211903, now seen corresponding path program 2 times [2020-04-18 16:11:20,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:20,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147405338] [2020-04-18 16:11:20,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:20,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147405338] [2020-04-18 16:11:20,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:20,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:11:20,814 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:20,821 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,831 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 42 transitions. [2020-04-18 16:11:20,832 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:20,842 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:11:20,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,843 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-04-18 16:11:20,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,846 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2020-04-18 16:11:20,846 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2020-04-18 16:11:20,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:20,847 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [55783581] [2020-04-18 16:11:20,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:11:20,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:11:20,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [55783581] [2020-04-18 16:11:20,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:11:20,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:11:20,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:20,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,851 INFO L87 Difference]: Start difference. First operand 570 states and 1352 transitions. Second operand 3 states. [2020-04-18 16:11:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:20,878 INFO L93 Difference]: Finished difference Result 531 states and 1223 transitions. [2020-04-18 16:11:20,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:11:20,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-04-18 16:11:20,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:11:20,884 INFO L225 Difference]: With dead ends: 531 [2020-04-18 16:11:20,884 INFO L226 Difference]: Without dead ends: 366 [2020-04-18 16:11:20,884 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-04-18 16:11:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2020-04-18 16:11:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-04-18 16:11:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 790 transitions. [2020-04-18 16:11:20,896 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 790 transitions. Word has length 42 [2020-04-18 16:11:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:11:20,897 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 790 transitions. [2020-04-18 16:11:20,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:11:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 790 transitions. [2020-04-18 16:11:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 16:11:20,900 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:11:20,900 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:11:20,900 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]=== [2020-04-18 16:11:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1169500887, now seen corresponding path program 1 times [2020-04-18 16:11:20,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:11:20,906 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1399897053] [2020-04-18 16:11:20,908 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:20,915 INFO L259 McrAutomatonBuilder]: Finished intersection with 151 states and 250 transitions. [2020-04-18 16:11:20,925 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-04-18 16:11:20,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 16:11:20,927 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:11:20,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:20,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1865615101, now seen corresponding path program 2 times [2020-04-18 16:11:20,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:20,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202763700] [2020-04-18 16:11:20,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:21,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202763700] [2020-04-18 16:11:21,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:21,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:11:21,015 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:21,024 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:21,057 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 133 transitions. [2020-04-18 16:11:21,057 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:21,067 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:11:21,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:21,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:11:21,067 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-04-18 16:11:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:21,074 INFO L93 Difference]: Finished difference Result 154 states and 252 transitions. [2020-04-18 16:11:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 252 transitions. [2020-04-18 16:11:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 16:11:21,075 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:11:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1169500887, now seen corresponding path program 3 times [2020-04-18 16:11:21,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:21,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259205329] [2020-04-18 16:11:21,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:21,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259205329] [2020-04-18 16:11:21,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:21,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 16:11:21,168 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:21,177 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:21,217 INFO L259 McrAutomatonBuilder]: Finished intersection with 83 states and 113 transitions. [2020-04-18 16:11:21,218 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:21,228 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:11:21,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:11:21,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:11:21,229 INFO L87 Difference]: Start difference. First operand 154 states and 252 transitions. Second operand 4 states. [2020-04-18 16:11:21,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:21,277 INFO L93 Difference]: Finished difference Result 169 states and 274 transitions. [2020-04-18 16:11:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 274 transitions. [2020-04-18 16:11:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 16:11:21,278 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:11:21,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:21,279 INFO L82 PathProgramCache]: Analyzing trace with hash -605170135, now seen corresponding path program 4 times [2020-04-18 16:11:21,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:21,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060740677] [2020-04-18 16:11:21,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:21,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060740677] [2020-04-18 16:11:21,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:21,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:11:21,346 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:21,354 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:21,385 INFO L259 McrAutomatonBuilder]: Finished intersection with 99 states and 145 transitions. [2020-04-18 16:11:21,385 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:21,410 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:11:21,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:11:21,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:11:21,411 INFO L87 Difference]: Start difference. First operand 169 states and 274 transitions. Second operand 3 states. [2020-04-18 16:11:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:21,416 INFO L93 Difference]: Finished difference Result 188 states and 300 transitions. [2020-04-18 16:11:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2020-04-18 16:11:21,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:21,418 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1399897053] [2020-04-18 16:11:21,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:11:21,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:11:21,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1399897053] [2020-04-18 16:11:21,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 16:11:21,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:11:21,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:11:21,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:11:21,420 INFO L87 Difference]: Start difference. First operand 366 states and 790 transitions. Second operand 5 states. [2020-04-18 16:11:21,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:21,561 INFO L93 Difference]: Finished difference Result 207 states and 420 transitions. [2020-04-18 16:11:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 16:11:21,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-04-18 16:11:21,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:11:21,562 INFO L225 Difference]: With dead ends: 207 [2020-04-18 16:11:21,562 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 16:11:21,562 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:11:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 16:11:21,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 16:11:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 16:11:21,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 16:11:21,563 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-04-18 16:11:21,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:11:21,563 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 16:11:21,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 16:11:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 16:11:21,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:21,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:11:21 BasicIcfg [2020-04-18 16:11:21,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:11:21,572 INFO L168 Benchmark]: Toolchain (without parser) took 3335.88 ms. Allocated memory was 142.6 MB in the beginning and 255.9 MB in the end (delta: 113.2 MB). Free memory was 99.1 MB in the beginning and 124.5 MB in the end (delta: -25.4 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,573 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.64 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 97.0 MB in the beginning and 155.7 MB in the end (delta: -58.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 199.2 MB. Free memory was 155.7 MB in the beginning and 153.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,575 INFO L168 Benchmark]: Boogie Preprocessor took 25.22 ms. Allocated memory is still 199.2 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,576 INFO L168 Benchmark]: RCFGBuilder took 518.39 ms. Allocated memory is still 199.2 MB. Free memory was 152.1 MB in the beginning and 127.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,577 INFO L168 Benchmark]: TraceAbstraction took 2002.55 ms. Allocated memory was 199.2 MB in the beginning and 255.9 MB in the end (delta: 56.6 MB). Free memory was 126.7 MB in the beginning and 124.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:11:21,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.64 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 97.0 MB in the beginning and 155.7 MB in the end (delta: -58.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 199.2 MB. Free memory was 155.7 MB in the beginning and 153.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.22 ms. Allocated memory is still 199.2 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 518.39 ms. Allocated memory is still 199.2 MB. Free memory was 152.1 MB in the beginning and 127.4 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2002.55 ms. Allocated memory was 199.2 MB in the beginning and 255.9 MB in the end (delta: 56.6 MB). Free memory was 126.7 MB in the beginning and 124.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 168 SDslu, 227 SDs, 0 SdLazy, 34 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...