/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/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:10:23,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:10:23,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:10:23,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:10:23,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:10:23,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:10:24,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:10:24,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:10:24,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:10:24,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:10:24,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:10:24,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:10:24,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:10:24,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:10:24,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:10:24,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:10:24,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:10:24,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:10:24,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:10:24,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:10:24,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:10:24,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:10:24,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:10:24,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:10:24,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:10:24,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:10:24,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:10:24,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:10:24,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:10:24,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:10:24,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:10:24,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:10:24,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:10:24,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:10:24,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:10:24,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:10:24,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:10:24,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:10:24,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:10:24,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:10:24,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:10:24,034 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 20:10:24,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:10:24,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:10:24,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:10:24,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:10:24,061 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:10:24,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:10:24,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:10:24,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:10:24,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:10:24,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:10:24,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:10:24,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:10:24,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:10:24,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:10:24,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:10:24,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:10:24,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:10:24,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:10:24,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:10:24,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:10:24,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:10:24,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:10:24,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:10:24,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:10:24,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:10:24,066 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:10:24,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:10:24,067 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:10:24,067 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:10:24,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:10:24,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:10:24,357 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:10:24,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:10:24,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:10:24,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:10:24,380 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:10:24,381 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-04-18 20:10:24,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d37f14ff/91890276fa8d4329b36cd02241fc6ac1/FLAG324675802 [2020-04-18 20:10:25,204 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:10:25,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-04-18 20:10:25,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d37f14ff/91890276fa8d4329b36cd02241fc6ac1/FLAG324675802 [2020-04-18 20:10:25,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d37f14ff/91890276fa8d4329b36cd02241fc6ac1 [2020-04-18 20:10:25,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:10:25,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:10:25,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:25,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:10:25,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:10:25,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:25" (1/1) ... [2020-04-18 20:10:25,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47df1ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:25, skipping insertion in model container [2020-04-18 20:10:25,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:10:25" (1/1) ... [2020-04-18 20:10:25,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:10:25,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:10:26,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:26,257 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:10:26,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:10:26,744 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:10:26,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26 WrapperNode [2020-04-18 20:10:26,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:10:26,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:26,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:10:26,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:10:26,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:10:26,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:10:26,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:10:26,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:10:26,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (1/1) ... [2020-04-18 20:10:26,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:10:26,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:10:26,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:10:26,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:10:26,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (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 20:10:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:10:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:10:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 20:10:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 20:10:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:10:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:10:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:10:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-18 20:10:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-18 20:10:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:10:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 20:10:27,008 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 20:10:27,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:10:27,694 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-18 20:10:27,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:27 BoogieIcfgContainer [2020-04-18 20:10:27,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:10:27,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:10:27,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:10:27,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:10:27,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:10:25" (1/3) ... [2020-04-18 20:10:27,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63271c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:27, skipping insertion in model container [2020-04-18 20:10:27,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:10:26" (2/3) ... [2020-04-18 20:10:27,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63271c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:10:27, skipping insertion in model container [2020-04-18 20:10:27,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:10:27" (3/3) ... [2020-04-18 20:10:27,707 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-04-18 20:10:27,717 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:10:27,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:10:27,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-18 20:10:27,726 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:10:27,751 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,751 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,751 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,752 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,752 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,752 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,752 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,753 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,753 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,753 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,753 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,754 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,754 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,754 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,758 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,758 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,759 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,759 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,759 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,759 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,759 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:10:27,781 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 20:10:27,803 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:10:27,803 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:10:27,803 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:10:27,803 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:10:27,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:10:27,804 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:10:27,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:10:27,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:10:27,819 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 84 transitions, 176 flow [2020-04-18 20:10:27,842 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 273 states. [2020-04-18 20:10:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2020-04-18 20:10:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 20:10:27,853 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:27,854 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] [2020-04-18 20:10:27,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:27,862 INFO L82 PathProgramCache]: Analyzing trace with hash 663703428, now seen corresponding path program 1 times [2020-04-18 20:10:27,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:27,870 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1963890711] [2020-04-18 20:10:27,887 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:27,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 20:10:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-04-18 20:10:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 20:10:27,899 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:27,900 INFO L82 PathProgramCache]: Analyzing trace with hash 663703428, now seen corresponding path program 2 times [2020-04-18 20:10:27,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:27,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425769507] [2020-04-18 20:10:27,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:28,372 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 20:10:28,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425769507] [2020-04-18 20:10:28,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:28,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:28,376 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:28,379 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:28,393 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 20:10:28,393 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:28,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:28,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:28,431 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-04-18 20:10:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:28,487 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-04-18 20:10:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-04-18 20:10:28,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:28,489 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1963890711] [2020-04-18 20:10:28,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:28,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:28,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1963890711] [2020-04-18 20:10:28,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:28,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:28,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:28,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:10:28,496 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 5 states. [2020-04-18 20:10:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:28,637 INFO L93 Difference]: Finished difference Result 271 states and 453 transitions. [2020-04-18 20:10:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 20:10:28,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-04-18 20:10:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:28,664 INFO L225 Difference]: With dead ends: 271 [2020-04-18 20:10:28,665 INFO L226 Difference]: Without dead ends: 235 [2020-04-18 20:10:28,669 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:28,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-04-18 20:10:28,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2020-04-18 20:10:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-04-18 20:10:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 396 transitions. [2020-04-18 20:10:28,731 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 396 transitions. Word has length 23 [2020-04-18 20:10:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:28,731 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 396 transitions. [2020-04-18 20:10:28,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 396 transitions. [2020-04-18 20:10:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:10:28,733 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:28,733 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] [2020-04-18 20:10:28,734 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:28,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:28,734 INFO L82 PathProgramCache]: Analyzing trace with hash -611752670, now seen corresponding path program 1 times [2020-04-18 20:10:28,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:28,735 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1063710831] [2020-04-18 20:10:28,735 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:28,736 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:10:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:10:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:10:28,737 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:28,738 INFO L82 PathProgramCache]: Analyzing trace with hash -611752670, now seen corresponding path program 2 times [2020-04-18 20:10:28,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:28,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698040079] [2020-04-18 20:10:28,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:28,896 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 20:10:28,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698040079] [2020-04-18 20:10:28,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:28,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:28,897 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:28,901 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:28,905 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:10:28,905 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:28,937 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:28,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:28,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:28,938 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2020-04-18 20:10:29,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,010 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:10:29,010 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:10:29,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:29,011 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1063710831] [2020-04-18 20:10:29,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:29,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:29,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1063710831] [2020-04-18 20:10:29,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:29,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:29,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:29,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:29,014 INFO L87 Difference]: Start difference. First operand 235 states and 396 transitions. Second operand 5 states. [2020-04-18 20:10:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,069 INFO L93 Difference]: Finished difference Result 233 states and 394 transitions. [2020-04-18 20:10:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:10:29,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-04-18 20:10:29,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:29,072 INFO L225 Difference]: With dead ends: 233 [2020-04-18 20:10:29,072 INFO L226 Difference]: Without dead ends: 227 [2020-04-18 20:10:29,074 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-04-18 20:10:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2020-04-18 20:10:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-04-18 20:10:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 388 transitions. [2020-04-18 20:10:29,092 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 388 transitions. Word has length 31 [2020-04-18 20:10:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:29,092 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 388 transitions. [2020-04-18 20:10:29,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 388 transitions. [2020-04-18 20:10:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 20:10:29,094 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:29,094 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] [2020-04-18 20:10:29,095 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:29,095 INFO L82 PathProgramCache]: Analyzing trace with hash -276527378, now seen corresponding path program 1 times [2020-04-18 20:10:29,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:29,096 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [98189936] [2020-04-18 20:10:29,097 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:29,098 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 20:10:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-04-18 20:10:29,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 20:10:29,100 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:29,100 INFO L82 PathProgramCache]: Analyzing trace with hash -276527378, now seen corresponding path program 2 times [2020-04-18 20:10:29,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:29,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100174896] [2020-04-18 20:10:29,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:29,251 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 20:10:29,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100174896] [2020-04-18 20:10:29,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:29,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:29,253 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:29,260 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:29,266 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 20:10:29,267 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:29,302 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:29,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:29,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:29,303 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 5 states. [2020-04-18 20:10:29,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,369 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-04-18 20:10:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-04-18 20:10:29,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:29,372 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [98189936] [2020-04-18 20:10:29,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:29,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:29,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [98189936] [2020-04-18 20:10:29,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:29,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:29,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:29,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:10:29,376 INFO L87 Difference]: Start difference. First operand 227 states and 388 transitions. Second operand 5 states. [2020-04-18 20:10:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,437 INFO L93 Difference]: Finished difference Result 197 states and 330 transitions. [2020-04-18 20:10:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:10:29,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-04-18 20:10:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:29,439 INFO L225 Difference]: With dead ends: 197 [2020-04-18 20:10:29,439 INFO L226 Difference]: Without dead ends: 157 [2020-04-18 20:10:29,439 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-04-18 20:10:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-04-18 20:10:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-04-18 20:10:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 255 transitions. [2020-04-18 20:10:29,459 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 255 transitions. Word has length 36 [2020-04-18 20:10:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:29,460 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 255 transitions. [2020-04-18 20:10:29,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 255 transitions. [2020-04-18 20:10:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-04-18 20:10:29,465 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:10:29,465 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, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:10:29,468 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:10:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:29,468 INFO L82 PathProgramCache]: Analyzing trace with hash 398198330, now seen corresponding path program 1 times [2020-04-18 20:10:29,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:10:29,469 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [45331249] [2020-04-18 20:10:29,472 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:29,479 INFO L259 McrAutomatonBuilder]: Finished intersection with 157 states and 255 transitions. [2020-04-18 20:10:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-04-18 20:10:29,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-04-18 20:10:29,487 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:10:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:10:29,488 INFO L82 PathProgramCache]: Analyzing trace with hash 398198330, now seen corresponding path program 2 times [2020-04-18 20:10:29,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:10:29,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433528229] [2020-04-18 20:10:29,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:10:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:10:29,631 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 20:10:29,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433528229] [2020-04-18 20:10:29,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:10:29,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:10:29,633 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:10:29,646 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:10:29,745 INFO L259 McrAutomatonBuilder]: Finished intersection with 157 states and 255 transitions. [2020-04-18 20:10:29,745 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:10:29,788 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:10:29,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:29,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:10:29,789 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 5 states. [2020-04-18 20:10:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,867 INFO L93 Difference]: Finished difference Result 157 states and 255 transitions. [2020-04-18 20:10:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 255 transitions. [2020-04-18 20:10:29,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:29,868 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [45331249] [2020-04-18 20:10:29,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:10:29,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:10:29,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [45331249] [2020-04-18 20:10:29,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:10:29,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:10:29,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:10:29,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:29,870 INFO L87 Difference]: Start difference. First operand 157 states and 255 transitions. Second operand 5 states. [2020-04-18 20:10:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:10:29,900 INFO L93 Difference]: Finished difference Result 155 states and 253 transitions. [2020-04-18 20:10:29,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:10:29,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-04-18 20:10:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:10:29,902 INFO L225 Difference]: With dead ends: 155 [2020-04-18 20:10:29,902 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:10:29,902 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:10:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:10:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:10:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:10:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:10:29,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-04-18 20:10:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:10:29,904 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:10:29,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:10:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:10:29,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:10:29,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:10:29 BasicIcfg [2020-04-18 20:10:29,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:10:29,913 INFO L168 Benchmark]: Toolchain (without parser) took 4567.63 ms. Allocated memory was 145.2 MB in the beginning and 249.6 MB in the end (delta: 104.3 MB). Free memory was 98.8 MB in the beginning and 169.9 MB in the end (delta: -71.1 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,913 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1377.61 ms. Allocated memory was 145.2 MB in the beginning and 236.5 MB in the end (delta: 91.2 MB). Free memory was 96.8 MB in the beginning and 172.1 MB in the end (delta: -75.3 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.61 ms. Allocated memory is still 236.5 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,916 INFO L168 Benchmark]: Boogie Preprocessor took 44.06 ms. Allocated memory is still 236.5 MB. Free memory was 169.2 MB in the beginning and 167.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,917 INFO L168 Benchmark]: RCFGBuilder took 785.69 ms. Allocated memory is still 236.5 MB. Free memory was 166.2 MB in the beginning and 128.5 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2020-04-18 20:10:29,918 INFO L168 Benchmark]: TraceAbstraction took 2210.40 ms. Allocated memory was 236.5 MB in the beginning and 249.6 MB in the end (delta: 13.1 MB). Free memory was 128.5 MB in the beginning and 169.9 MB in the end (delta: -41.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:10:29,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1377.61 ms. Allocated memory was 145.2 MB in the beginning and 236.5 MB in the end (delta: 91.2 MB). Free memory was 96.8 MB in the beginning and 172.1 MB in the end (delta: -75.3 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 121.61 ms. Allocated memory is still 236.5 MB. Free memory was 172.1 MB in the beginning and 169.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.06 ms. Allocated memory is still 236.5 MB. Free memory was 169.2 MB in the beginning and 167.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 785.69 ms. Allocated memory is still 236.5 MB. Free memory was 166.2 MB in the beginning and 128.5 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2210.40 ms. Allocated memory was 236.5 MB in the beginning and 249.6 MB in the end (delta: 13.1 MB). Free memory was 128.5 MB in the beginning and 169.9 MB in the end (delta: -41.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 307 SDslu, 560 SDs, 0 SdLazy, 65 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...