/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/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:54:30,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:54:30,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:54:30,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:54:30,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:54:30,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:54:30,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:54:30,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:54:30,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:54:30,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:54:30,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:54:30,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:54:30,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:54:30,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:54:30,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:54:30,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:54:30,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:54:30,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:54:30,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:54:30,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:54:30,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:54:30,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:54:30,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:54:30,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:54:30,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 01:54:30,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:54:30,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:54:30,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:54:30,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:54:30,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:54:30,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:54:30,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:54:30,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:54:30,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:54:30,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:54:30,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:54:30,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 01:54:30,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:54:30,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:54:30,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:54:30,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:54:30,614 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:54:30,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:54:30,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:54:30,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:54:30,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:54:30,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:54:30,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:54:30,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:54:30,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:54:30,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:54:30,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:54:30,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:54:30,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:54:30,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:54:30,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:54:30,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:54:30,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:54:30,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:54:30,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:54:30,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:54:30,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:54:30,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:54:30,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:54:30,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:54:30,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:54:30,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:54:31,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:54:31,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:54:31,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:54:31,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:54:31,150 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:54:31,152 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-09-17 01:54:31,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3782dbe00/8c5b3dbc20e14227b0c252a96d189dde/FLAG907a96736 [2020-09-17 01:54:31,919 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:54:31,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-09-17 01:54:31,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3782dbe00/8c5b3dbc20e14227b0c252a96d189dde/FLAG907a96736 [2020-09-17 01:54:32,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3782dbe00/8c5b3dbc20e14227b0c252a96d189dde [2020-09-17 01:54:32,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:54:32,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:54:32,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:54:32,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:54:32,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:54:32,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:32,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665e84cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32, skipping insertion in model container [2020-09-17 01:54:32,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:32,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:54:32,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:54:32,516 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-09-17 01:54:32,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:54:32,838 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:54:32,855 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-09-17 01:54:32,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:54:32,973 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:54:32,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32 WrapperNode [2020-09-17 01:54:32,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:54:32,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:54:32,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:54:32,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:54:32,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:54:33,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:54:33,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:54:33,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:54:33,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... [2020-09-17 01:54:33,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:54:33,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:54:33,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:54:33,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:54:33,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:54:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 01:54:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:54:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-17 01:54:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:54:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:54:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-17 01:54:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-09-17 01:54:33,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-09-17 01:54:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:54:33,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:54:33,178 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:54:33,615 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:54:33,615 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-17 01:54:33,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:54:33 BoogieIcfgContainer [2020-09-17 01:54:33,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:54:33,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:54:33,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:54:33,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:54:33,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:54:32" (1/3) ... [2020-09-17 01:54:33,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733d2d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:54:33, skipping insertion in model container [2020-09-17 01:54:33,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:54:32" (2/3) ... [2020-09-17 01:54:33,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733d2d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:54:33, skipping insertion in model container [2020-09-17 01:54:33,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:54:33" (3/3) ... [2020-09-17 01:54:33,632 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2020-09-17 01:54:33,645 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:54:33,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:54:33,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:54:33,659 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:54:33,688 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,688 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,688 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,689 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,689 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,690 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,690 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,691 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,696 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,696 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,697 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:54:33,726 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-17 01:54:33,752 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:54:33,752 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:54:33,752 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:54:33,752 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:54:33,752 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:54:33,752 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:54:33,753 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:54:33,753 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:54:33,770 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 118 flow [2020-09-17 01:54:33,772 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 118 flow [2020-09-17 01:54:33,820 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2020-09-17 01:54:33,821 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-17 01:54:33,827 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 3/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2020-09-17 01:54:33,830 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 118 flow [2020-09-17 01:54:33,852 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2020-09-17 01:54:33,852 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-17 01:54:33,853 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 54 events. 3/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2020-09-17 01:54:33,855 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 260 [2020-09-17 01:54:33,856 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:54:35,267 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-17 01:54:35,729 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-09-17 01:54:35,896 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-17 01:54:35,899 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2020-09-17 01:54:35,899 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-17 01:54:35,904 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-09-17 01:54:35,913 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2020-09-17 01:54:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-09-17 01:54:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:54:35,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:54:35,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:54:35,926 INFO L427 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:54:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:54:35,933 INFO L82 PathProgramCache]: Analyzing trace with hash 215854, now seen corresponding path program 1 times [2020-09-17 01:54:35,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:54:35,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434357194] [2020-09-17 01:54:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:54:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:54:36,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:54:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:54:36,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:54:36,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:54:36,194 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:54:36,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:54:36,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:54:36 BasicIcfg [2020-09-17 01:54:36,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:54:36,225 INFO L168 Benchmark]: Toolchain (without parser) took 4024.21 ms. Allocated memory was 147.3 MB in the beginning and 245.9 MB in the end (delta: 98.6 MB). Free memory was 102.6 MB in the beginning and 154.3 MB in the end (delta: -51.7 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,226 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 01:54:36,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.57 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 164.5 MB in the end (delta: -62.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.16 ms. Allocated memory is still 205.0 MB. Free memory was 164.5 MB in the beginning and 162.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,229 INFO L168 Benchmark]: Boogie Preprocessor took 44.60 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,230 INFO L168 Benchmark]: RCFGBuilder took 536.68 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 139.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,231 INFO L168 Benchmark]: TraceAbstraction took 2600.11 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 139.1 MB in the beginning and 154.3 MB in the end (delta: -15.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:54:36,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.57 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 164.5 MB in the end (delta: -62.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.16 ms. Allocated memory is still 205.0 MB. Free memory was 164.5 MB in the beginning and 162.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.60 ms. Allocated memory is still 205.0 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 536.68 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 139.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2600.11 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 139.1 MB in the beginning and 154.3 MB in the end (delta: -15.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 56 ProgramPointsBefore, 13 ProgramPointsAfterwards, 55 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 136 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 212 CheckedPairsTotal, 49 TotalNumberOfCompositions - CounterExampleResult [Line: 693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L686] 0 pthread_mutex_t lock; [L687] 0 pthread_cond_t cond; [L688] 0 int x; [L698] 0 pthread_t t; [L701] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={2:0}, lock={3:0}, x=0] [L693] 1 !(x == 42) ? __VERIFIER_error() : (void)0 [L693] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, cond={2:0}, lock={3:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...