/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:57:37,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:57:37,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:57:37,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:57:38,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:57:38,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:57:38,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:57:38,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:57:38,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:57:38,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:57:38,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:57:38,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:57:38,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:57:38,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:57:38,055 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:57:38,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:57:38,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:57:38,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:57:38,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:57:38,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:57:38,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:57:38,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:57:38,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:57:38,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:57:38,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:57:38,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:57:38,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:57:38,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:57:38,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:57:38,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:57:38,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:57:38,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:57:38,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:57:38,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:57:38,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:57:38,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:57:38,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:57:38,069 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:57:38,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:57:38,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:57:38,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:57:38,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:57:38,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:57:38,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:57:38,405 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:57:38,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-07-13 18:57:38,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ab1c0c0/c1400a0491914b1f9fd765274b5eafca/FLAG10a6ebaf1 [2021-07-13 18:57:39,012 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:57:39,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-07-13 18:57:39,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ab1c0c0/c1400a0491914b1f9fd765274b5eafca/FLAG10a6ebaf1 [2021-07-13 18:57:39,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ab1c0c0/c1400a0491914b1f9fd765274b5eafca [2021-07-13 18:57:39,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:57:39,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:57:39,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:57:39,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:57:39,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:57:39,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc9de07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39, skipping insertion in model container [2021-07-13 18:57:39,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:57:39,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:57:39,481 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:57:39,649 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-07-13 18:57:39,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:57:39,671 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:57:39,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:57:39,719 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-07-13 18:57:39,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:57:39,761 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:57:39,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39 WrapperNode [2021-07-13 18:57:39,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:57:39,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:57:39,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:57:39,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:57:39,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:57:39,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:57:39,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:57:39,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:57:39,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (1/1) ... [2021-07-13 18:57:39,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:57:39,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:57:39,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:57:39,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:57:39,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (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 [2021-07-13 18:57:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:57:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:57:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 18:57:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:57:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:57:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:57:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-07-13 18:57:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-07-13 18:57:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:57:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:57:39,915 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:57:40,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:57:40,261 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-13 18:57:40,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:57:40 BoogieIcfgContainer [2021-07-13 18:57:40,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:57:40,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:57:40,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:57:40,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:57:40,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:57:39" (1/3) ... [2021-07-13 18:57:40,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77c9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:57:40, skipping insertion in model container [2021-07-13 18:57:40,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:57:39" (2/3) ... [2021-07-13 18:57:40,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d77c9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:57:40, skipping insertion in model container [2021-07-13 18:57:40,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:57:40" (3/3) ... [2021-07-13 18:57:40,269 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-07-13 18:57:40,274 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:57:40,274 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:57:40,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:57:40,275 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:57:40,306 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,307 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,307 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,307 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,308 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,308 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,308 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,308 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,309 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,309 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,309 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,309 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,310 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,310 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,310 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,310 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,310 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,311 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,311 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,311 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,314 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,314 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,314 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,314 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:57:40,328 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-13 18:57:40,345 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-13 18:57:40,360 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:57:40,360 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:57:40,360 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:57:40,360 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:57:40,360 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:57:40,360 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:57:40,361 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:57:40,361 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == threadThread1of1ForFork0======== [2021-07-13 18:57:40,370 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 68 transitions, 144 flow [2021-07-13 18:57:40,394 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 127 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 126 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 126 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:40,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-13 18:57:40,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:40,405 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:40,405 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1483348482, now seen corresponding path program 1 times [2021-07-13 18:57:40,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:40,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814613676] [2021-07-13 18:57:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:57:40,538 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:57:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:57:40,572 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:57:40,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 18:57:40,621 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 18:57:40,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:57:40,622 INFO L301 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was UNSAFE (1/2) [2021-07-13 18:57:40,624 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:57:40,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:57:40 BasicIcfg [2021-07-13 18:57:40,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:57:40,676 INFO L168 Benchmark]: Toolchain (without parser) took 1344.35 ms. Allocated memory is still 199.2 MB. Free memory was 163.3 MB in the beginning and 176.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,677 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 199.2 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:57:40,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.12 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 173.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.68 ms. Allocated memory is still 199.2 MB. Free memory was 173.5 MB in the beginning and 171.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,680 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 199.2 MB. Free memory was 171.4 MB in the beginning and 170.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,680 INFO L168 Benchmark]: RCFGBuilder took 431.95 ms. Allocated memory is still 199.2 MB. Free memory was 170.4 MB in the beginning and 147.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,681 INFO L168 Benchmark]: TraceAbstraction took 410.00 ms. Allocated memory is still 199.2 MB. Free memory was 147.3 MB in the beginning and 176.1 MB in the end (delta: -28.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:57:40,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 199.2 MB. Free memory is still 181.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 430.12 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 173.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.68 ms. Allocated memory is still 199.2 MB. Free memory was 173.5 MB in the beginning and 171.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 199.2 MB. Free memory was 171.4 MB in the beginning and 170.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 431.95 ms. Allocated memory is still 199.2 MB. Free memory was 170.4 MB in the beginning and 147.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 410.00 ms. Allocated memory is still 199.2 MB. Free memory was 147.3 MB in the beginning and 176.1 MB in the end (delta: -28.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={11:0}] [L698] 0 pthread_cond_t cond; VAL [cond={13:0}, lock={11:0}] [L699] 0 int x; VAL [cond={13:0}, lock={11:0}, x=0] [L709] 0 pthread_t t; VAL [cond={13:0}, lock={11:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 264.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.1ms SsaConstructionTime, 52.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 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...