/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:23:24,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:23:24,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:23:24,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:23:24,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:23:24,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:23:24,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:23:24,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:23:24,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:23:24,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:23:24,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:23:24,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:23:24,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:23:24,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:23:24,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:23:24,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:23:24,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:23:24,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:23:24,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:23:24,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:23:24,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:23:24,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:23:24,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:23:24,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:23:24,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:23:24,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:23:24,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:23:24,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:23:24,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:23:24,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:23:24,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:23:24,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:23:24,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:23:24,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:23:24,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:23:24,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:23:24,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:23:24,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:23:24,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:23:24,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:23:24,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:23:24,932 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:23:24,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:23:24,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:23:24,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:23:24,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:23:24,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:23:24,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:23:24,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:23:24,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:23:24,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:23:24,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:23:24,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:23:24,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:23:24,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:23:24,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:23:24,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:23:24,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:23:24,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:23:24,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:23:24,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:23:24,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:23:24,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:23:24,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:23:24,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:23:24,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:23:24,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:23:25,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:23:25,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:23:25,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:23:25,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:23:25,264 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:23:25,265 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-16 11:23:25,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81f04872/6572015e626a41ab9f5a00a4bbf258f1/FLAG577189b94 [2020-10-16 11:23:25,977 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:23:25,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-16 11:23:26,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81f04872/6572015e626a41ab9f5a00a4bbf258f1/FLAG577189b94 [2020-10-16 11:23:26,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f81f04872/6572015e626a41ab9f5a00a4bbf258f1 [2020-10-16 11:23:26,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:23:26,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:23:26,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:23:26,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:23:26,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:23:26,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:26" (1/1) ... [2020-10-16 11:23:26,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d469fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:26, skipping insertion in model container [2020-10-16 11:23:26,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:26" (1/1) ... [2020-10-16 11:23:26,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:23:26,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:23:27,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:23:27,058 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:23:27,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:23:27,584 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:23:27,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27 WrapperNode [2020-10-16 11:23:27,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:23:27,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:23:27,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:23:27,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:23:27,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:23:27,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:23:27,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:23:27,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:23:27,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (1/1) ... [2020-10-16 11:23:27,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:23:27,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:23:27,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:23:27,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:23:27,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (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 11:23:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:23:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:23:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 11:23:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 11:23:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:23:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:23:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:23:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 11:23:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 11:23:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:23:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:23:27,834 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 11:23:28,390 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:23:28,391 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 11:23:28,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:28 BoogieIcfgContainer [2020-10-16 11:23:28,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:23:28,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:23:28,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:23:28,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:23:28,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:23:26" (1/3) ... [2020-10-16 11:23:28,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57faed99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:28, skipping insertion in model container [2020-10-16 11:23:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:27" (2/3) ... [2020-10-16 11:23:28,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57faed99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:28, skipping insertion in model container [2020-10-16 11:23:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:28" (3/3) ... [2020-10-16 11:23:28,402 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-10-16 11:23:28,415 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:23:28,415 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:23:28,421 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 11:23:28,422 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:23:28,446 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,447 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,447 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,452 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,452 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,452 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,452 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,453 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:23:28,466 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-16 11:23:28,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 11:23:28,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:23:28,500 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:23:28,500 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:23:28,500 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:23:28,500 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:23:28,500 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:23:28,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:23:28,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:23:28,514 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:23:28,517 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 178 flow [2020-10-16 11:23:28,520 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 85 transitions, 178 flow [2020-10-16 11:23:28,522 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-10-16 11:23:28,566 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-10-16 11:23:28,567 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 11:23:28,571 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. [2020-10-16 11:23:28,573 INFO L117 LiptonReduction]: Number of co-enabled transitions 308 [2020-10-16 11:23:30,813 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-16 11:23:31,189 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-16 11:23:31,303 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 11:23:31,320 INFO L132 LiptonReduction]: Checked pairs total: 336 [2020-10-16 11:23:31,321 INFO L134 LiptonReduction]: Total number of compositions: 102 [2020-10-16 11:23:31,327 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-10-16 11:23:31,335 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-10-16 11:23:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-16 11:23:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-16 11:23:31,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:31,343 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-16 11:23:31,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:31,348 INFO L82 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2020-10-16 11:23:31,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:31,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933443568] [2020-10-16 11:23:31,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:31,625 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 11:23:31,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933443568] [2020-10-16 11:23:31,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:31,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 11:23:31,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570725616] [2020-10-16 11:23:31,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:23:31,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:31,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:23:31,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:23:31,650 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-10-16 11:23:31,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:31,663 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-16 11:23:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:23:31,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-16 11:23:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:31,674 INFO L225 Difference]: With dead ends: 18 [2020-10-16 11:23:31,674 INFO L226 Difference]: Without dead ends: 8 [2020-10-16 11:23:31,675 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 11:23:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-16 11:23:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-16 11:23:31,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 11:23:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-10-16 11:23:31,703 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-10-16 11:23:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:31,703 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-10-16 11:23:31,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:23:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-10-16 11:23:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 11:23:31,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:31,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 11:23:31,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:23:31,705 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:31,705 INFO L82 PathProgramCache]: Analyzing trace with hash 10458850, now seen corresponding path program 1 times [2020-10-16 11:23:31,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:31,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652563800] [2020-10-16 11:23:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:23:31,866 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 11:23:31,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652563800] [2020-10-16 11:23:31,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:23:31,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:23:31,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931540524] [2020-10-16 11:23:31,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:23:31,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:23:31,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:23:31,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:23:31,871 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-10-16 11:23:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:23:31,883 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-10-16 11:23:31,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:23:31,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 11:23:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:23:31,885 INFO L225 Difference]: With dead ends: 8 [2020-10-16 11:23:31,885 INFO L226 Difference]: Without dead ends: 6 [2020-10-16 11:23:31,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:23:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-10-16 11:23:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-10-16 11:23:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 11:23:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-10-16 11:23:31,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-10-16 11:23:31,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:23:31,888 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-10-16 11:23:31,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:23:31,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-10-16 11:23:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:23:31,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:23:31,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:23:31,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:23:31,890 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:23:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:23:31,890 INFO L82 PathProgramCache]: Analyzing trace with hash 324224792, now seen corresponding path program 1 times [2020-10-16 11:23:31,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:23:31,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54997899] [2020-10-16 11:23:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:23:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:23:31,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:23:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:23:31,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:23:31,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:23:31,978 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:23:31,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:23:31,979 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 11:23:31,984 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [276] [276] L1682-->L1696: Formula: (and (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In-464751656| 2147483648)) (= ULTIMATE.start_ldv_assert_~expression_Out-464751656 |ULTIMATE.start_ldv_assert_#in~expression_In-464751656|) (not (= ULTIMATE.start_ldv_assert_~expression_Out-464751656 0)) (<= |ULTIMATE.start_module_init_#t~nondet31_In-464751656| 2147483647)) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-464751656|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-464751656|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In-464751656|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-464751656|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-464751656} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-10-16 11:23:32,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:23:32 BasicIcfg [2020-10-16 11:23:32,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:23:32,008 INFO L168 Benchmark]: Toolchain (without parser) took 5835.69 ms. Allocated memory was 138.4 MB in the beginning and 296.7 MB in the end (delta: 158.3 MB). Free memory was 98.4 MB in the beginning and 173.1 MB in the end (delta: -74.7 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,009 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1413.37 ms. Allocated memory was 138.4 MB in the beginning and 233.8 MB in the end (delta: 95.4 MB). Free memory was 98.1 MB in the beginning and 170.9 MB in the end (delta: -72.7 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.48 ms. Allocated memory is still 233.8 MB. Free memory was 170.9 MB in the beginning and 167.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,012 INFO L168 Benchmark]: Boogie Preprocessor took 44.72 ms. Allocated memory is still 233.8 MB. Free memory was 167.9 MB in the beginning and 165.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,013 INFO L168 Benchmark]: RCFGBuilder took 644.51 ms. Allocated memory is still 233.8 MB. Free memory was 165.0 MB in the beginning and 125.9 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,014 INFO L168 Benchmark]: TraceAbstraction took 3611.26 ms. Allocated memory was 233.8 MB in the beginning and 296.7 MB in the end (delta: 62.9 MB). Free memory was 125.9 MB in the beginning and 173.1 MB in the end (delta: -47.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:23:32,018 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1413.37 ms. Allocated memory was 138.4 MB in the beginning and 233.8 MB in the end (delta: 95.4 MB). Free memory was 98.1 MB in the beginning and 170.9 MB in the end (delta: -72.7 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.48 ms. Allocated memory is still 233.8 MB. Free memory was 170.9 MB in the beginning and 167.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.72 ms. Allocated memory is still 233.8 MB. Free memory was 167.9 MB in the beginning and 165.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 644.51 ms. Allocated memory is still 233.8 MB. Free memory was 165.0 MB in the beginning and 125.9 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3611.26 ms. Allocated memory was 233.8 MB in the beginning and 296.7 MB in the end (delta: 62.9 MB). Free memory was 125.9 MB in the beginning and 173.1 MB in the end (delta: -47.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 228 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 11 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 5 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 83 PlacesBefore, 17 PlacesAfterwards, 85 TransitionsBefore, 15 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 6 FixpointIterations, 58 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 102 TotalNumberOfCompositions, 336 MoverChecksTotal - 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: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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, 0.0s 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...