/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 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:46:27,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:46:27,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:46:27,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:46:27,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 11:46:27,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 11:46:27,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 11:46:27,580 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 [2021-08-21 11:46:27,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:46:27,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:46:27,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:46:27,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:46:27,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:46:27,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:46:27,604 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:46:27,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:46:27,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:46:27,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:46:27,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:46:27,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:46:27,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:46:27,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:46:27,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:46:27,615 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:46:27,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:46:27,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:46:27,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:46:27,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:46:27,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:46:27,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:46:27,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:46:27,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:46:27,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:46:27,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:46:27,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:46:27,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:46:27,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:46:27,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:46:27,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:46:27,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:46:27,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:46:27,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:46:27,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:46:27,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:46:27,965 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:46:27,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-08-21 11:46:28,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6ae4622/2c1b52906a4c4931b175e2503945bb57/FLAG1e9ceeef8 [2021-08-21 11:46:28,568 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:46:28,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-08-21 11:46:28,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6ae4622/2c1b52906a4c4931b175e2503945bb57/FLAG1e9ceeef8 [2021-08-21 11:46:28,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6ae4622/2c1b52906a4c4931b175e2503945bb57 [2021-08-21 11:46:28,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:46:28,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:46:28,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:46:28,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:46:28,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:46:28,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:46:28" (1/1) ... [2021-08-21 11:46:28,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33acb7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:28, skipping insertion in model container [2021-08-21 11:46:28,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:46:28" (1/1) ... [2021-08-21 11:46:28,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:46:28,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:46:28,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 11:46:29,191 WARN L228 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] [2021-08-21 11:46:29,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:46:29,216 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:46:29,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 11:46:29,254 WARN L228 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] [2021-08-21 11:46:29,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:46:29,301 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:46:29,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29 WrapperNode [2021-08-21 11:46:29,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:46:29,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:46:29,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:46:29,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:46:29,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:46:29,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:46:29,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:46:29,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:46:29,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:46:29,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:46:29,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:46:29,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:46:29,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (1/1) ... [2021-08-21 11:46:29,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:46:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:46:29,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:46:29,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:46:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:46:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-08-21 11:46:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-08-21 11:46:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:46:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:46:29,434 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:46:29,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:46:29,839 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-21 11:46:29,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:46:29 BoogieIcfgContainer [2021-08-21 11:46:29,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:46:29,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:46:29,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:46:29,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:46:29,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:46:28" (1/3) ... [2021-08-21 11:46:29,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d014d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:46:29, skipping insertion in model container [2021-08-21 11:46:29,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:46:29" (2/3) ... [2021-08-21 11:46:29,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d014d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:46:29, skipping insertion in model container [2021-08-21 11:46:29,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:46:29" (3/3) ... [2021-08-21 11:46:29,847 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-08-21 11:46:29,852 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:46:29,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:46:29,852 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 11:46:29,852 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:46:29,875 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,875 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,875 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,875 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,876 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,876 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,876 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,881 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,882 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,882 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,882 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,882 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,883 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:46:29,890 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-21 11:46:29,927 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:46:29,933 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:46:29,933 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-21 11:46:29,943 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 68 transitions, 144 flow [2021-08-21 11:46:29,960 INFO L133 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) [2021-08-21 11:46:29,963 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) [2021-08-21 11:46:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-21 11:46:29,969 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:29,970 INFO L512 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] [2021-08-21 11:46:29,971 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-21 11:46:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:29,975 INFO L82 PathProgramCache]: Analyzing trace with hash -567238561, now seen corresponding path program 1 times [2021-08-21 11:46:29,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:29,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887685867] [2021-08-21 11:46:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:29,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 11:46:30,137 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-21 11:46:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 11:46:30,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-21 11:46:30,252 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-21 11:46:30,253 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:46:30,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:46:30,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:46:30,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:46:30,261 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:46:30,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:46:30,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:46:30 BasicIcfg [2021-08-21 11:46:30,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:46:30,306 INFO L168 Benchmark]: Toolchain (without parser) took 1447.46 ms. Allocated memory is still 207.6 MB. Free memory was 171.2 MB in the beginning and 180.4 MB in the end (delta: -9.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:46:30,307 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 207.6 MB. Free memory is still 189.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:46:30,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.71 ms. Allocated memory is still 207.6 MB. Free memory was 171.0 MB in the beginning and 180.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:46:30,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 207.6 MB. Free memory was 180.5 MB in the beginning and 178.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:46:30,308 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 207.6 MB. Free memory was 178.8 MB in the beginning and 177.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:46:30,309 INFO L168 Benchmark]: RCFGBuilder took 483.76 ms. Allocated memory is still 207.6 MB. Free memory was 177.3 MB in the beginning and 155.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:46:30,309 INFO L168 Benchmark]: TraceAbstraction took 462.45 ms. Allocated memory is still 207.6 MB. Free memory was 155.0 MB in the beginning and 180.4 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:46:30,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 207.6 MB. Free memory is still 189.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 442.71 ms. Allocated memory is still 207.6 MB. Free memory was 171.0 MB in the beginning and 180.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 207.6 MB. Free memory was 180.5 MB in the beginning and 178.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 207.6 MB. Free memory was 178.8 MB in the beginning and 177.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 483.76 ms. Allocated memory is still 207.6 MB. Free memory was 177.3 MB in the beginning and 155.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 462.45 ms. Allocated memory is still 207.6 MB. Free memory was 155.0 MB in the beginning and 180.4 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 333.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.3ms, 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: 7.4ms SsaConstructionTime, 87.0ms 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! [2021-08-21 11:46:30,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...