/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/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:57:07,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:57:07,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:57:08,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:57:08,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:57:08,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:57:08,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:57:08,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:57:08,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:57:08,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:57:08,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:57:08,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:57:08,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:57:08,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:57:08,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:57:08,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:57:08,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:57:08,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:57:08,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:57:08,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:57:08,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:57:08,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:57:08,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:57:08,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:57:08,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:57:08,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:57:08,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:57:08,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:57:08,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:57:08,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:57:08,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:57:08,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:57:08,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:57:08,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:57:08,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:57:08,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:57:08,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:57:08,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:57:08,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:57:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:57:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:57:08,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:57:08,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:57:08,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:57:08,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:57:08,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:57:08,136 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:57:08,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:57:08,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:57:08,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:57:08,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:57:08,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:57:08,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:57:08,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:57:08,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:57:08,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:57:08,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:57:08,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:57:08,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:57:08,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:57:08,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:57:08,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:57:08,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:57:08,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:57:08,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:57:08,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:57:08,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:57:08,142 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:57:08,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:57:08,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:57:08,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:57:08,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:57:08,499 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:57:08,500 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-10-16 13:57:08,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97828f98/6089f0e5db744ad9a884450d0c0de7a4/FLAGff31ba1fd [2020-10-16 13:57:09,149 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:57:09,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2020-10-16 13:57:09,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97828f98/6089f0e5db744ad9a884450d0c0de7a4/FLAGff31ba1fd [2020-10-16 13:57:09,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c97828f98/6089f0e5db744ad9a884450d0c0de7a4 [2020-10-16 13:57:09,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:57:09,431 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:57:09,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:57:09,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:57:09,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:57:09,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:57:09" (1/1) ... [2020-10-16 13:57:09,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723a73c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:09, skipping insertion in model container [2020-10-16 13:57:09,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:57:09" (1/1) ... [2020-10-16 13:57:09,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:57:09,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:57:09,671 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-16 13:57:09,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:57:10,011 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:57:10,032 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-16 13:57:10,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:57:10,195 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:57:10,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10 WrapperNode [2020-10-16 13:57:10,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:57:10,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:57:10,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:57:10,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:57:10,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:57:10,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:57:10,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:57:10,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:57:10,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... [2020-10-16 13:57:10,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:57:10,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:57:10,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:57:10,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:57:10,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 13:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 13:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 13:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-10-16 13:57:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-10-16 13:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:57:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:57:10,378 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:57:10,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:57:10,742 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-16 13:57:10,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:57:10 BoogieIcfgContainer [2020-10-16 13:57:10,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:57:10,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:57:10,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:57:10,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:57:10,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:57:09" (1/3) ... [2020-10-16 13:57:10,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f0833d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:57:10, skipping insertion in model container [2020-10-16 13:57:10,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:57:10" (2/3) ... [2020-10-16 13:57:10,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f0833d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:57:10, skipping insertion in model container [2020-10-16 13:57:10,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:57:10" (3/3) ... [2020-10-16 13:57:10,754 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2020-10-16 13:57:10,770 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:57:10,770 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:57:10,780 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:57:10,781 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:57:10,805 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,806 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,806 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,806 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,807 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,807 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,808 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,808 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,809 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,809 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,813 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,813 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,813 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,814 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,814 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,814 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:57:10,826 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-16 13:57:10,840 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 13:57:10,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:57:10,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:57:10,862 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:57:10,862 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:57:10,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:57:10,863 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:57:10,863 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:57:10,863 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:57:10,876 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:57:10,876 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 118 flow [2020-10-16 13:57:10,879 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 55 transitions, 118 flow [2020-10-16 13:57:10,881 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 118 flow [2020-10-16 13:57:10,934 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2020-10-16 13:57:10,935 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 13:57:10,939 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. [2020-10-16 13:57:10,943 INFO L117 LiptonReduction]: Number of co-enabled transitions 260 [2020-10-16 13:57:12,477 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-16 13:57:12,622 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-16 13:57:12,625 INFO L132 LiptonReduction]: Checked pairs total: 241 [2020-10-16 13:57:12,625 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-16 13:57:12,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-10-16 13:57:12,640 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2020-10-16 13:57:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-16 13:57:12,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-16 13:57:12,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:57:12,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-16 13:57:12,649 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:57:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:57:12,656 INFO L82 PathProgramCache]: Analyzing trace with hash 215854, now seen corresponding path program 1 times [2020-10-16 13:57:12,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:57:12,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876981543] [2020-10-16 13:57:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:57:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:57:12,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:57:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:57:12,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:57:12,913 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 13:57:12,914 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 13:57:12,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:57:12,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:57:12 BasicIcfg [2020-10-16 13:57:12,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:57:12,950 INFO L168 Benchmark]: Toolchain (without parser) took 3518.89 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 102.4 MB in the beginning and 161.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,951 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:57:12,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.80 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 164.8 MB in the end (delta: -62.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.60 ms. Allocated memory is still 205.0 MB. Free memory was 164.8 MB in the beginning and 162.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,954 INFO L168 Benchmark]: Boogie Preprocessor took 33.20 ms. Allocated memory is still 205.0 MB. Free memory was 162.1 MB in the beginning and 160.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,955 INFO L168 Benchmark]: RCFGBuilder took 464.12 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 139.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,956 INFO L168 Benchmark]: TraceAbstraction took 2201.79 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 139.0 MB in the beginning and 161.8 MB in the end (delta: -22.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:57:12,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.80 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 164.8 MB in the end (delta: -62.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.60 ms. Allocated memory is still 205.0 MB. Free memory was 164.8 MB in the beginning and 162.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.20 ms. Allocated memory is still 205.0 MB. Free memory was 162.1 MB in the beginning and 160.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.12 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 139.6 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2201.79 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 139.0 MB in the beginning and 161.8 MB in the end (delta: -22.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 137 VarBasedMoverChecksPositive, 5 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 56 PlacesBefore, 13 PlacesAfterwards, 55 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 241 MoverChecksTotal - 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: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, 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...