/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_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:28:31,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:28:31,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:28:31,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:28:31,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:28:31,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:28:31,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:28:31,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:28:31,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:28:31,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:28:31,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:28:31,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:28:31,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:28:31,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:28:31,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:28:31,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:28:31,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:28:31,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:28:31,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:28:31,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:28:31,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:28:31,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:28:31,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:28:31,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:28:31,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-16 01:28:31,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:28:31,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:28:31,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:28:31,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:28:31,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:28:31,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:28:31,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:28:31,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:28:31,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:28:31,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:28:31,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:28:31,676 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 [2020-09-16 01:28:31,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:28:31,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:28:31,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:28:31,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:28:31,703 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:28:31,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:28:31,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:28:31,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:28:31,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:28:31,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:28:31,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:28:31,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:28:31,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:28:31,705 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:28:31,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:28:31,705 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:28:31,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:28:31,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:28:31,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:28:31,706 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:28:31,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:28:31,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:28:31,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:28:31,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:28:31,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:28:31,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:28:31,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:28:31,708 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:28:31,708 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:28:31,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:28:31,709 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:28:32,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:28:32,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:28:32,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:28:32,252 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:28:32,253 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:28:32,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-09-16 01:28:32,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564ae8cbc/685e4be61e7444b2a1294bf13efd4573/FLAG3df1a500e [2020-09-16 01:28:33,161 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:28:33,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2020-09-16 01:28:33,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564ae8cbc/685e4be61e7444b2a1294bf13efd4573/FLAG3df1a500e [2020-09-16 01:28:33,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564ae8cbc/685e4be61e7444b2a1294bf13efd4573 [2020-09-16 01:28:33,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:28:33,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:28:33,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:28:33,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:28:33,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:28:33,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:28:33" (1/1) ... [2020-09-16 01:28:33,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ebed44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:33, skipping insertion in model container [2020-09-16 01:28:33,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:28:33" (1/1) ... [2020-09-16 01:28:33,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:28:33,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:28:34,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:28:34,219 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:28:34,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:28:34,700 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:28:34,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34 WrapperNode [2020-09-16 01:28:34,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:28:34,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:28:34,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:28:34,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:28:34,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:28:34,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:28:34,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:28:34,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:28:34,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (1/1) ... [2020-09-16 01:28:34,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:28:34,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:28:34,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:28:34,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:28:34,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (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 [2020-09-16 01:28:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:28:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-16 01:28:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-16 01:28:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-16 01:28:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:28:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:28:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:28:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-16 01:28:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-16 01:28:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:28:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-16 01:28:34,938 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:28:35,507 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:28:35,507 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-16 01:28:35,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:28:35 BoogieIcfgContainer [2020-09-16 01:28:35,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:28:35,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:28:35,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:28:35,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:28:35,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:28:33" (1/3) ... [2020-09-16 01:28:35,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b82734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:28:35, skipping insertion in model container [2020-09-16 01:28:35,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:28:34" (2/3) ... [2020-09-16 01:28:35,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b82734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:28:35, skipping insertion in model container [2020-09-16 01:28:35,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:28:35" (3/3) ... [2020-09-16 01:28:35,524 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2020-09-16 01:28:35,538 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:28:35,539 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:28:35,551 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-16 01:28:35,552 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:28:35,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,586 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,592 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,592 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,593 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,593 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:28:35,629 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-16 01:28:35,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:28:35,660 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:28:35,660 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:28:35,661 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:28:35,661 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:28:35,661 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:28:35,661 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:28:35,661 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:28:35,683 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 178 flow [2020-09-16 01:28:35,686 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-16 01:28:35,750 INFO L129 PetriNetUnfolder]: 6/104 cut-off events. [2020-09-16 01:28:35,750 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-16 01:28:35,756 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 6/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2020-09-16 01:28:35,759 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-16 01:28:35,784 INFO L129 PetriNetUnfolder]: 6/104 cut-off events. [2020-09-16 01:28:35,785 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-16 01:28:35,786 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 6/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2020-09-16 01:28:35,788 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 308 [2020-09-16 01:28:35,790 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:28:38,290 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-09-16 01:28:38,522 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-16 01:28:38,664 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-16 01:28:38,667 INFO L206 etLargeBlockEncoding]: Checked pairs total: 256 [2020-09-16 01:28:38,668 INFO L214 etLargeBlockEncoding]: Total number of compositions: 100 [2020-09-16 01:28:38,673 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-09-16 01:28:38,683 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 23 states. [2020-09-16 01:28:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-09-16 01:28:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-16 01:28:38,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:28:38,694 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-16 01:28:38,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:28:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:28:38,702 INFO L82 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2020-09-16 01:28:38,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:28:38,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374732218] [2020-09-16 01:28:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:28:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:28:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:28:39,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374732218] [2020-09-16 01:28:39,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:28:39,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-16 01:28:39,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [297393794] [2020-09-16 01:28:39,013 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:28:39,024 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:28:39,040 INFO L274 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-09-16 01:28:39,040 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:28:39,043 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:28:39,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 01:28:39,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:28:39,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 01:28:39,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:28:39,071 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-09-16 01:28:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:28:39,083 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-09-16 01:28:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 01:28:39,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-16 01:28:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:28:39,098 INFO L225 Difference]: With dead ends: 20 [2020-09-16 01:28:39,098 INFO L226 Difference]: Without dead ends: 13 [2020-09-16 01:28:39,101 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 [2020-09-16 01:28:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-09-16 01:28:39,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-09-16 01:28:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-09-16 01:28:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-09-16 01:28:39,151 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 1 [2020-09-16 01:28:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:28:39,152 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-09-16 01:28:39,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 01:28:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-09-16 01:28:39,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-16 01:28:39,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:28:39,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-16 01:28:39,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:28:39,154 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:28:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:28:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash 340878, now seen corresponding path program 1 times [2020-09-16 01:28:39,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:28:39,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664156612] [2020-09-16 01:28:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:28:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:28:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:28:39,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664156612] [2020-09-16 01:28:39,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:28:39,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:28:39,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [613514880] [2020-09-16 01:28:39,356 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:28:39,357 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:28:39,358 INFO L274 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-09-16 01:28:39,358 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:28:39,358 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:28:39,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 01:28:39,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:28:39,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 01:28:39,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:28:39,367 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-09-16 01:28:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:28:39,394 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-09-16 01:28:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 01:28:39,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-16 01:28:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:28:39,395 INFO L225 Difference]: With dead ends: 11 [2020-09-16 01:28:39,395 INFO L226 Difference]: Without dead ends: 10 [2020-09-16 01:28:39,397 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 [2020-09-16 01:28:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-09-16 01:28:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-09-16 01:28:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-09-16 01:28:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-09-16 01:28:39,401 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 3 [2020-09-16 01:28:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:28:39,401 INFO L479 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-09-16 01:28:39,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 01:28:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-09-16 01:28:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-16 01:28:39,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:28:39,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-16 01:28:39,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:28:39,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:28:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:28:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash 327035711, now seen corresponding path program 1 times [2020-09-16 01:28:39,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:28:39,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169687027] [2020-09-16 01:28:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:28:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:28:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:28:39,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169687027] [2020-09-16 01:28:39,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:28:39,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:28:39,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [71788077] [2020-09-16 01:28:39,523 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:28:39,524 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:28:39,525 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-16 01:28:39,525 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:28:39,526 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:28:39,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 01:28:39,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:28:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 01:28:39,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 01:28:39,527 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-09-16 01:28:39,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:28:39,536 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-09-16 01:28:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 01:28:39,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-16 01:28:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:28:39,538 INFO L225 Difference]: With dead ends: 10 [2020-09-16 01:28:39,538 INFO L226 Difference]: Without dead ends: 7 [2020-09-16 01:28:39,538 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 [2020-09-16 01:28:39,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-09-16 01:28:39,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-09-16 01:28:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-09-16 01:28:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-09-16 01:28:39,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 5 [2020-09-16 01:28:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:28:39,541 INFO L479 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-09-16 01:28:39,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 01:28:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-09-16 01:28:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-16 01:28:39,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:28:39,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-16 01:28:39,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:28:39,542 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:28:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:28:39,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1548172606, now seen corresponding path program 1 times [2020-09-16 01:28:39,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:28:39,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208187998] [2020-09-16 01:28:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:28:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-16 01:28:39,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-16 01:28:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-16 01:28:39,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-16 01:28:39,652 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-16 01:28:39,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-16 01:28:39,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:28:39,653 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-16 01:28:39,658 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [313] [313] ULTIMATE.startENTRY-->L1696: Formula: (let ((.cse2 (store |#valid_In-1610199013| 0 0))) (let ((.cse0 (select |#memory_int_In-1610199013| |~#mutex~0.base_Out-1610199013|)) (.cse1 (store .cse2 |~#t1~0.base_Out-1610199013| 1))) (and (< |#StackHeapBarrier_In-1610199013| |~#t1~0.base_Out-1610199013|) (= (select (select |#memory_int_In-1610199013| |~#t1~0.base_Out-1610199013|) |~#t1~0.offset_Out-1610199013|) 0) (= (select .cse0 (+ |~#mutex~0.offset_Out-1610199013| 16)) 0) (< 0 |#StackHeapBarrier_In-1610199013|) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_Out-1610199013| 2147483648)) (= ~pdev~0_Out-1610199013 1) (= |#length_Out-1610199013| (store (store |#length_In-1610199013| |~#t1~0.base_Out-1610199013| 4) |~#mutex~0.base_Out-1610199013| 24)) (= (select .cse0 |~#mutex~0.offset_Out-1610199013|) 0) (< |#StackHeapBarrier_In-1610199013| |~#mutex~0.base_Out-1610199013|) (= (select .cse0 (+ |~#mutex~0.offset_Out-1610199013| 4)) 0) (= (store |#pthreadsMutex_In-1610199013| |~#mutex~0.base_Out-1610199013| (store (select |#pthreadsMutex_In-1610199013| |~#mutex~0.base_Out-1610199013|) |~#mutex~0.offset_Out-1610199013| 0)) |#pthreadsMutex_Out-1610199013|) (= (select .cse1 |~#mutex~0.base_Out-1610199013|) 0) (= |ULTIMATE.start_ldv_assert_#in~expression_Out-1610199013| ULTIMATE.start_ldv_assert_~expression_Out-1610199013) (= |#NULL.offset_Out-1610199013| 0) (= (select .cse0 (+ |~#mutex~0.offset_Out-1610199013| 12)) 0) (= (select .cse0 (+ |~#mutex~0.offset_Out-1610199013| 8)) 0) (= |~#mutex~0.offset_Out-1610199013| 0) (= (store .cse1 |~#mutex~0.base_Out-1610199013| 1) |#valid_Out-1610199013|) (= |~#t1~0.offset_Out-1610199013| 0) (= |#NULL.base_Out-1610199013| 0) (<= |ULTIMATE.start_module_init_#t~nondet31_Out-1610199013| 2147483647) (= |ULTIMATE.start_ldv_assert_#in~expression_Out-1610199013| 1) (= (select .cse2 |~#t1~0.base_Out-1610199013|) 0)))) InVars {#pthreadsMutex=|#pthreadsMutex_In-1610199013|, #StackHeapBarrier=|#StackHeapBarrier_In-1610199013|, #valid=|#valid_In-1610199013|, #memory_int=|#memory_int_In-1610199013|, #length=|#length_In-1610199013|} OutVars{ULTIMATE.start_module_init_#res=|ULTIMATE.start_module_init_#res_Out-1610199013|, #pthreadsMutex=|#pthreadsMutex_Out-1610199013|, ~#mutex~0.base=|~#mutex~0.base_Out-1610199013|, ~#mutex~0.offset=|~#mutex~0.offset_Out-1610199013|, #NULL.offset=|#NULL.offset_Out-1610199013|, ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_Out-1610199013|, ~#t1~0.offset=|~#t1~0.offset_Out-1610199013|, ULTIMATE.start_module_init_#t~nondet32=|ULTIMATE.start_module_init_#t~nondet32_Out-1610199013|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_Out-1610199013|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-1610199013, #NULL.base=|#NULL.base_Out-1610199013|, #StackHeapBarrier=|#StackHeapBarrier_In-1610199013|, ~#t1~0.base=|~#t1~0.base_Out-1610199013|, ULTIMATE.start_main_#t~ret35=|ULTIMATE.start_main_#t~ret35_Out-1610199013|, ~pdev~0=~pdev~0_Out-1610199013, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out-1610199013|, #valid=|#valid_Out-1610199013|, #memory_int=|#memory_int_In-1610199013|, #length=|#length_Out-1610199013|} AuxVars[] AssignedVars[ULTIMATE.start_module_init_#res, #pthreadsMutex, ~#mutex~0.base, ~#mutex~0.offset, #NULL.offset, ULTIMATE.start_module_init_#t~nondet31, ~#t1~0.offset, ULTIMATE.start_module_init_#t~nondet32, ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression, #NULL.base, ~#t1~0.base, ULTIMATE.start_main_#t~ret35, ~pdev~0, ULTIMATE.start_main_#res, #valid, #length] because there is no mapped edge [2020-09-16 01:28:39,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:28:39 BasicIcfg [2020-09-16 01:28:39,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:28:39,684 INFO L168 Benchmark]: Toolchain (without parser) took 6384.10 ms. Allocated memory was 140.5 MB in the beginning and 284.7 MB in the end (delta: 144.2 MB). Free memory was 99.6 MB in the beginning and 138.2 MB in the end (delta: -38.5 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,685 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.7 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1397.11 ms. Allocated memory was 140.5 MB in the beginning and 237.0 MB in the end (delta: 96.5 MB). Free memory was 99.1 MB in the beginning and 171.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.37 ms. Allocated memory is still 237.0 MB. Free memory was 171.3 MB in the beginning and 167.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,688 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 237.0 MB. Free memory was 167.9 MB in the beginning and 164.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,689 INFO L168 Benchmark]: RCFGBuilder took 673.92 ms. Allocated memory is still 237.0 MB. Free memory was 164.4 MB in the beginning and 126.3 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,690 INFO L168 Benchmark]: TraceAbstraction took 4167.12 ms. Allocated memory was 237.0 MB in the beginning and 284.7 MB in the end (delta: 47.7 MB). Free memory was 126.3 MB in the beginning and 138.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-09-16 01:28:39,694 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.7 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1397.11 ms. Allocated memory was 140.5 MB in the beginning and 237.0 MB in the end (delta: 96.5 MB). Free memory was 99.1 MB in the beginning and 171.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.37 ms. Allocated memory is still 237.0 MB. Free memory was 171.3 MB in the beginning and 167.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 237.0 MB. Free memory was 167.9 MB in the beginning and 164.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 673.92 ms. Allocated memory is still 237.0 MB. Free memory was 164.4 MB in the beginning and 126.3 MB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4167.12 ms. Allocated memory was 237.0 MB in the beginning and 284.7 MB in the end (delta: 47.7 MB). Free memory was 126.3 MB in the beginning and 138.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.9s, 83 ProgramPointsBefore, 17 ProgramPointsAfterwards, 85 TransitionsBefore, 15 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 158 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 256 CheckedPairsTotal, 100 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1696] COND TRUE 0 __VERIFIER_nondet_int() [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={5:0}] [L1698] 0 return 0; [L1715] COND FALSE 0 !(module_init()!=0) [L1706] 0 void *status; [L1707] 0 pdev = 4 VAL [arg={0:0}, mutex={3:0}, pdev=4, t1={5:0}] [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={3:0}, pdev=6, t1={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...