/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 13:00:08,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 13:00:08,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 13:00:08,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 13:00:08,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 13:00:08,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 13:00:08,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 13:00:08,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 13:00:08,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 13:00:08,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 13:00:08,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 13:00:08,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 13:00:08,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 13:00:08,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 13:00:08,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 13:00:08,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 13:00:08,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 13:00:08,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 13:00:08,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 13:00:08,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 13:00:08,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 13:00:08,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 13:00:08,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 13:00:08,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 13:00:08,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 13:00:08,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 13:00:08,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 13:00:08,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 13:00:08,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 13:00:08,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 13:00:08,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 13:00:08,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 13:00:08,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 13:00:08,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 13:00:08,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 13:00:08,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 13:00:08,580 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.epf [2020-09-15 13:00:08,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 13:00:08,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 13:00:08,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 13:00:08,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 13:00:08,609 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 13:00:08,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 13:00:08,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 13:00:08,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 13:00:08,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 13:00:08,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 13:00:08,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 13:00:08,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 13:00:08,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 13:00:08,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 13:00:08,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 13:00:08,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 13:00:08,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 13:00:08,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 13:00:08,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 13:00:08,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 13:00:08,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 13:00:08,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 13:00:08,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 13:00:08,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 13:00:08,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 13:00:08,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 13:00:08,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 13:00:08,614 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 13:00:08,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 13:00:09,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 13:00:09,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 13:00:09,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 13:00:09,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 13:00:09,147 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 13:00:09,149 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-09-15 13:00:09,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b577b903/cb5d29a6d7374e77b037bde39e5d97ba/FLAGd044ecb2c [2020-09-15 13:00:10,005 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 13:00:10,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-09-15 13:00:10,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b577b903/cb5d29a6d7374e77b037bde39e5d97ba/FLAGd044ecb2c [2020-09-15 13:00:10,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b577b903/cb5d29a6d7374e77b037bde39e5d97ba [2020-09-15 13:00:10,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 13:00:10,149 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 13:00:10,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 13:00:10,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 13:00:10,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 13:00:10,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:00:10" (1/1) ... [2020-09-15 13:00:10,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a768182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:10, skipping insertion in model container [2020-09-15 13:00:10,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:00:10" (1/1) ... [2020-09-15 13:00:10,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 13:00:10,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 13:00:11,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:00:11,132 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 13:00:11,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:00:11,712 INFO L208 MainTranslator]: Completed translation [2020-09-15 13:00:11,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11 WrapperNode [2020-09-15 13:00:11,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 13:00:11,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 13:00:11,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 13:00:11,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 13:00:11,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 13:00:11,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 13:00:11,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 13:00:11,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 13:00:11,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (1/1) ... [2020-09-15 13:00:11,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 13:00:11,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 13:00:11,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 13:00:11,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 13:00:11,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (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 [2020-09-15 13:00:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 13:00:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 13:00:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-15 13:00:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-15 13:00:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 13:00:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 13:00:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 13:00:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-15 13:00:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-15 13:00:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 13:00:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-15 13:00:12,051 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 13:00:12,851 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 13:00:12,852 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-15 13:00:12,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:00:12 BoogieIcfgContainer [2020-09-15 13:00:12,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 13:00:12,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 13:00:12,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 13:00:12,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 13:00:12,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:00:10" (1/3) ... [2020-09-15 13:00:12,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4354d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:00:12, skipping insertion in model container [2020-09-15 13:00:12,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:00:11" (2/3) ... [2020-09-15 13:00:12,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4354d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:00:12, skipping insertion in model container [2020-09-15 13:00:12,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:00:12" (3/3) ... [2020-09-15 13:00:12,867 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-09-15 13:00:12,880 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 13:00:12,881 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 13:00:12,893 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-15 13:00:12,895 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 13:00:12,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,934 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,934 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,936 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,942 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,942 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,943 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,943 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:12,943 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:00:13,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 13:00:13,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 13:00:13,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 13:00:13,046 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 13:00:13,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 13:00:13,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 13:00:13,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 13:00:13,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 13:00:13,046 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 13:00:13,067 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 178 flow [2020-09-15 13:00:13,069 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-15 13:00:13,136 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-09-15 13:00:13,136 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-15 13:00:13,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-09-15 13:00:13,145 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-15 13:00:13,185 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-09-15 13:00:13,185 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-15 13:00:13,186 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-09-15 13:00:13,188 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 308 [2020-09-15 13:00:13,190 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 13:00:14,912 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-09-15 13:00:16,198 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-09-15 13:00:16,326 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-09-15 13:00:16,648 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-09-15 13:00:16,794 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-15 13:00:16,803 INFO L206 etLargeBlockEncoding]: Checked pairs total: 260 [2020-09-15 13:00:16,803 INFO L214 etLargeBlockEncoding]: Total number of compositions: 96 [2020-09-15 13:00:16,808 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-09-15 13:00:16,819 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-15 13:00:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-15 13:00:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-15 13:00:16,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:16,831 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-15 13:00:16,832 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:16,838 INFO L82 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2020-09-15 13:00:16,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:16,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408344747] [2020-09-15 13:00:16,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:17,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408344747] [2020-09-15 13:00:17,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:17,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-15 13:00:17,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617375441] [2020-09-15 13:00:17,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 13:00:17,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:17,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 13:00:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 13:00:17,156 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-09-15 13:00:17,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:17,173 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-09-15 13:00:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 13:00:17,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-15 13:00:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:17,186 INFO L225 Difference]: With dead ends: 18 [2020-09-15 13:00:17,186 INFO L226 Difference]: Without dead ends: 8 [2020-09-15 13:00:17,188 INFO L675 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 [2020-09-15 13:00:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-09-15 13:00:17,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-09-15 13:00:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-09-15 13:00:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-09-15 13:00:17,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-09-15 13:00:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:17,226 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-09-15 13:00:17,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 13:00:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-09-15 13:00:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-15 13:00:17,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:17,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-15 13:00:17,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 13:00:17,228 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:17,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:17,228 INFO L82 PathProgramCache]: Analyzing trace with hash 10399268, now seen corresponding path program 1 times [2020-09-15 13:00:17,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:17,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615900902] [2020-09-15 13:00:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:00:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:00:17,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615900902] [2020-09-15 13:00:17,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:00:17,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:00:17,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49199491] [2020-09-15 13:00:17,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:00:17,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:00:17,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:00:17,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:00:17,462 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-09-15 13:00:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:00:17,487 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-09-15 13:00:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:00:17,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-15 13:00:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:00:17,488 INFO L225 Difference]: With dead ends: 8 [2020-09-15 13:00:17,488 INFO L226 Difference]: Without dead ends: 6 [2020-09-15 13:00:17,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:00:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-09-15 13:00:17,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-09-15 13:00:17,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-09-15 13:00:17,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-09-15 13:00:17,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-09-15 13:00:17,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:00:17,492 INFO L479 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-09-15 13:00:17,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:00:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-09-15 13:00:17,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 13:00:17,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:00:17,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 13:00:17,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 13:00:17,494 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:00:17,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:00:17,494 INFO L82 PathProgramCache]: Analyzing trace with hash 322377750, now seen corresponding path program 1 times [2020-09-15 13:00:17,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:00:17,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012906024] [2020-09-15 13:00:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:00:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 13:00:17,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 13:00:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 13:00:17,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 13:00:17,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 13:00:17,612 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 13:00:17,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 13:00:17,613 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-15 13:00:17,619 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [276] [276] L1682-->L1696: Formula: (and (<= |ULTIMATE.start_module_init_#t~nondet31_In-1339309422| 2147483647) (= |ULTIMATE.start_ldv_assert_#in~expression_In-1339309422| ULTIMATE.start_ldv_assert_~expression_Out-1339309422) (not (= ULTIMATE.start_ldv_assert_~expression_Out-1339309422 0)) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In-1339309422| 2147483648))) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-1339309422|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-1339309422|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-1339309422|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-1339309422|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-1339309422} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-09-15 13:00:17,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:00:17 BasicIcfg [2020-09-15 13:00:17,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 13:00:17,645 INFO L168 Benchmark]: Toolchain (without parser) took 7501.77 ms. Allocated memory was 146.8 MB in the beginning and 286.3 MB in the end (delta: 139.5 MB). Free memory was 100.1 MB in the beginning and 154.2 MB in the end (delta: -54.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,646 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1563.76 ms. Allocated memory was 146.8 MB in the beginning and 238.0 MB in the end (delta: 91.2 MB). Free memory was 99.4 MB in the beginning and 174.4 MB in the end (delta: -75.0 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.43 ms. Allocated memory is still 238.0 MB. Free memory was 174.4 MB in the beginning and 171.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,649 INFO L168 Benchmark]: Boogie Preprocessor took 67.44 ms. Allocated memory is still 238.0 MB. Free memory was 171.4 MB in the beginning and 168.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,650 INFO L168 Benchmark]: RCFGBuilder took 942.05 ms. Allocated memory is still 238.0 MB. Free memory was 168.4 MB in the beginning and 130.4 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,651 INFO L168 Benchmark]: TraceAbstraction took 4784.51 ms. Allocated memory was 238.0 MB in the beginning and 286.3 MB in the end (delta: 48.2 MB). Free memory was 130.4 MB in the beginning and 154.2 MB in the end (delta: -23.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-09-15 13:00:17,655 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1563.76 ms. Allocated memory was 146.8 MB in the beginning and 238.0 MB in the end (delta: 91.2 MB). Free memory was 99.4 MB in the beginning and 174.4 MB in the end (delta: -75.0 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 131.43 ms. Allocated memory is still 238.0 MB. Free memory was 174.4 MB in the beginning and 171.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.44 ms. Allocated memory is still 238.0 MB. Free memory was 171.4 MB in the beginning and 168.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 942.05 ms. Allocated memory is still 238.0 MB. Free memory was 168.4 MB in the beginning and 130.4 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4784.51 ms. Allocated memory was 238.0 MB in the beginning and 286.3 MB in the end (delta: 48.2 MB). Free memory was 130.4 MB in the beginning and 154.2 MB in the end (delta: -23.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.7s, 83 ProgramPointsBefore, 17 ProgramPointsAfterwards, 85 TransitionsBefore, 15 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 163 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 260 CheckedPairsTotal, 96 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1; [L1684] 0 pthread_mutex_t mutex; [L1685] 0 int pdev; [L1694] 0 pdev = 1 [L1696] COND TRUE 0 __VERIFIER_nondet_int() [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={2:0}, pdev=1, t1={3:0}] [L1698] 0 pdev = 2 VAL [arg={0:0}, mutex={2:0}, pdev=2, t1={3:0}] [L1688] 1 pdev = 6 [L1690] 1 return 0; [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...