/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:52:12,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:52:12,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:52:12,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:52:12,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:52:12,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:52:12,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:52:12,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:52:12,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:52:12,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:52:12,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:52:12,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:52:12,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:52:12,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:52:12,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:52:12,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:52:12,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:52:12,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:52:12,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:52:12,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:52:12,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:52:12,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:52:12,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:52:12,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:52:12,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:52:12,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:52:12,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:52:12,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:52:12,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:52:12,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:52:12,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:52:12,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:52:12,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:52:12,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:52:12,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:52:12,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:52:12,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:52:12,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:52:12,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:52:12,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:52:12,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:52:12,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:52:12,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:52:12,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:52:12,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:52:12,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:52:12,844 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:52:12,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:52:12,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:52:12,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:52:12,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:52:12,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:52:12,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:52:12,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:52:12,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:52:12,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:52:12,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:52:12,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:52:12,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:52:12,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:52:12,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:52:12,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:52:12,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:52:12,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:52:12,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:52:12,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:52:12,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:52:12,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:52:12,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:52:12,850 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:52:12,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:52:12,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:52:12,850 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:52:13,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:52:13,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:52:13,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:52:13,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:52:13,144 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:52:13,145 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 13:52:13,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6296ea697/83a3d90d3e054edbbd4943757666574b/FLAG4d99ae390 [2020-10-16 13:52:13,823 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:52:13,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 13:52:13,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6296ea697/83a3d90d3e054edbbd4943757666574b/FLAG4d99ae390 [2020-10-16 13:52:14,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6296ea697/83a3d90d3e054edbbd4943757666574b [2020-10-16 13:52:14,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:52:14,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:52:14,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:52:14,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:52:14,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:52:14,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:52:14" (1/1) ... [2020-10-16 13:52:14,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f963932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:14, skipping insertion in model container [2020-10-16 13:52:14,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:52:14" (1/1) ... [2020-10-16 13:52:14,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:52:14,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:52:14,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:52:14,846 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:52:14,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:52:15,328 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:52:15,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15 WrapperNode [2020-10-16 13:52:15,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:52:15,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:52:15,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:52:15,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:52:15,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:52:15,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:52:15,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:52:15,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:52:15,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... [2020-10-16 13:52:15,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:52:15,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:52:15,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:52:15,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:52:15,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:52:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 13:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 13:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 13:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:52:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 13:52:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 13:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 13:52:15,554 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:52:16,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:52:16,075 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 13:52:16,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:52:16 BoogieIcfgContainer [2020-10-16 13:52:16,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:52:16,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:52:16,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:52:16,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:52:16,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:52:14" (1/3) ... [2020-10-16 13:52:16,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5036d664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:52:16, skipping insertion in model container [2020-10-16 13:52:16,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:52:15" (2/3) ... [2020-10-16 13:52:16,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5036d664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:52:16, skipping insertion in model container [2020-10-16 13:52:16,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:52:16" (3/3) ... [2020-10-16 13:52:16,085 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-10-16 13:52:16,097 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:52:16,097 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:52:16,105 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 13:52:16,106 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:52:16,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,134 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,134 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,135 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,135 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,135 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,136 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,136 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,136 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,136 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,137 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,137 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,137 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,138 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,142 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,142 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,142 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,143 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,143 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,143 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:52:16,156 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-16 13:52:16,170 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 13:52:16,191 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:52:16,191 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:52:16,191 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:52:16,191 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:52:16,192 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:52:16,192 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:52:16,192 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:52:16,192 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:52:16,205 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:52:16,206 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 84 transitions, 176 flow [2020-10-16 13:52:16,209 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 84 transitions, 176 flow [2020-10-16 13:52:16,211 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-10-16 13:52:16,257 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-10-16 13:52:16,258 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 13:52:16,262 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-16 13:52:16,264 INFO L117 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-16 13:52:17,722 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-16 13:52:18,242 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-16 13:52:18,529 INFO L132 LiptonReduction]: Checked pairs total: 354 [2020-10-16 13:52:18,529 INFO L134 LiptonReduction]: Total number of compositions: 106 [2020-10-16 13:52:18,536 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 36 flow [2020-10-16 13:52:18,545 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-10-16 13:52:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-16 13:52:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-16 13:52:18,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:52:18,554 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-16 13:52:18,555 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:52:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:52:18,561 INFO L82 PathProgramCache]: Analyzing trace with hash 346, now seen corresponding path program 1 times [2020-10-16 13:52:18,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:52:18,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221464079] [2020-10-16 13:52:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:52:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:52:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:52:18,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221464079] [2020-10-16 13:52:18,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:52:18,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 13:52:18,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1108696981] [2020-10-16 13:52:18,899 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:52:18,902 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:52:18,909 INFO L258 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-10-16 13:52:18,909 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:52:18,913 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:52:18,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:52:18,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:52:18,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:52:18,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:52:18,931 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-10-16 13:52:18,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:52:18,940 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-16 13:52:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:52:18,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-16 13:52:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:52:18,950 INFO L225 Difference]: With dead ends: 14 [2020-10-16 13:52:18,950 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:52:18,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:52:18,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:52:18,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:52:18,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:52:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:52:18,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2020-10-16 13:52:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:52:18,974 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:52:18,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:52:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:52:18,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:52:18,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:52:18,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:52:18 BasicIcfg [2020-10-16 13:52:18,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:52:18,981 INFO L168 Benchmark]: Toolchain (without parser) took 4902.02 ms. Allocated memory was 147.8 MB in the beginning and 282.1 MB in the end (delta: 134.2 MB). Free memory was 101.0 MB in the beginning and 190.6 MB in the end (delta: -89.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:52:18,981 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:52:18,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1250.14 ms. Allocated memory was 147.8 MB in the beginning and 235.4 MB in the end (delta: 87.6 MB). Free memory was 100.8 MB in the beginning and 167.6 MB in the end (delta: -66.8 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:52:18,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.74 ms. Allocated memory is still 235.4 MB. Free memory was 167.6 MB in the beginning and 164.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:52:18,984 INFO L168 Benchmark]: Boogie Preprocessor took 43.36 ms. Allocated memory is still 235.4 MB. Free memory was 164.8 MB in the beginning and 162.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:52:18,985 INFO L168 Benchmark]: RCFGBuilder took 598.77 ms. Allocated memory is still 235.4 MB. Free memory was 162.0 MB in the beginning and 123.8 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:52:18,986 INFO L168 Benchmark]: TraceAbstraction took 2900.43 ms. Allocated memory was 235.4 MB in the beginning and 282.1 MB in the end (delta: 46.7 MB). Free memory was 122.4 MB in the beginning and 190.6 MB in the end (delta: -68.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:52:18,990 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 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1250.14 ms. Allocated memory was 147.8 MB in the beginning and 235.4 MB in the end (delta: 87.6 MB). Free memory was 100.8 MB in the beginning and 167.6 MB in the end (delta: -66.8 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 103.74 ms. Allocated memory is still 235.4 MB. Free memory was 167.6 MB in the beginning and 164.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.36 ms. Allocated memory is still 235.4 MB. Free memory was 164.8 MB in the beginning and 162.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 598.77 ms. Allocated memory is still 235.4 MB. Free memory was 162.0 MB in the beginning and 123.8 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2900.43 ms. Allocated memory was 235.4 MB in the beginning and 282.1 MB in the end (delta: 46.7 MB). Free memory was 122.4 MB in the beginning and 190.6 MB in the end (delta: -68.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 228 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 82 PlacesBefore, 16 PlacesAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 7 FixpointIterations, 65 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 106 TotalNumberOfCompositions, 354 MoverChecksTotal - 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: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...