/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 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:17:26,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:17:26,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:17:26,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:17:26,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:17:26,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:17:26,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:17:26,466 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 [2022-03-15 13:17:26,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:17:26,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:17:26,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:17:26,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:17:26,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:17:26,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:17:26,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:17:26,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:17:26,495 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:17:26,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:17:26,496 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:17:26,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:17:26,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:17:26,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:17:26,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:17:26,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:17:26,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:17:26,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:17:26,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:17:26,499 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:17:26,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:17:26,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:17:26,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:17:26,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:17:26,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:17:26,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:17:26,719 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:17:26,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-03-15 13:17:26,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea6fb728/2bb6168420694f5b96251d098347ad38/FLAG1d6fdda29 [2022-03-15 13:17:27,192 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:17:27,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-03-15 13:17:27,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea6fb728/2bb6168420694f5b96251d098347ad38/FLAG1d6fdda29 [2022-03-15 13:17:27,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea6fb728/2bb6168420694f5b96251d098347ad38 [2022-03-15 13:17:27,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:17:27,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:17:27,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:17:27,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:17:27,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:17:27,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d195281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27, skipping insertion in model container [2022-03-15 13:17:27,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:17:27,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:17:27,385 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-15 13:17:27,469 WARN L230 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] [2022-03-15 13:17:27,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:17:27,484 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:17:27,496 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-03-15 13:17:27,512 WARN L230 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] [2022-03-15 13:17:27,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:17:27,538 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:17:27,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27 WrapperNode [2022-03-15 13:17:27,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:17:27,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:17:27,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:17:27,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:17:27,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,567 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-03-15 13:17:27,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:17:27,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:17:27,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:17:27,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:17:27,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:17:27,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:17:27,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:17:27,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:17:27,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (1/1) ... [2022-03-15 13:17:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:17:27,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:17:27,610 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) [2022-03-15 13:17:27,617 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 [2022-03-15 13:17:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:17:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:17:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 13:17:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:17:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:17:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:17:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:17:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-03-15 13:17:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-03-15 13:17:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:17:27,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:17:27,645 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:17:27,755 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:17:27,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:17:27,908 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:17:27,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:17:27,913 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-15 13:17:27,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:17:27 BoogieIcfgContainer [2022-03-15 13:17:27,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:17:27,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:17:27,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:17:27,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:17:27,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:17:27" (1/3) ... [2022-03-15 13:17:27,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f93776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:17:27, skipping insertion in model container [2022-03-15 13:17:27,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:17:27" (2/3) ... [2022-03-15 13:17:27,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f93776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:17:27, skipping insertion in model container [2022-03-15 13:17:27,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:17:27" (3/3) ... [2022-03-15 13:17:27,921 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-03-15 13:17:27,925 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:17:27,925 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:17:27,925 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:17:27,925 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:17:27,946 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,947 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,950 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,950 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,952 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,952 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:17:27,956 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 13:17:27,986 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:17:27,993 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:17:27,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 13:17:28,001 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 156 flow [2022-03-15 13:17:28,025 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 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) [2022-03-15 13:17:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 131 states have (on average 1.6870229007633588) internal successors, (221), 131 states have internal predecessors, (221), 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) [2022-03-15 13:17:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-15 13:17:28,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:17:28,034 INFO L514 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, 1, 1, 1, 1, 1] [2022-03-15 13:17:28,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-15 13:17:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:17:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-03-15 13:17:28,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:17:28,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130870770] [2022-03-15 13:17:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:17:28,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:17:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:17:28,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 13:17:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 13:17:28,180 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 13:17:28,182 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 13:17:28,182 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 13:17:28,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 13:17:28,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-03-15 13:17:28,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:17:28,187 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-15 13:17:28,191 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 13:17:28,191 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 13:17:28,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:17:28 BasicIcfg [2022-03-15 13:17:28,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 13:17:28,233 INFO L158 Benchmark]: Toolchain (without parser) took 1016.82ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 127.8MB in the beginning and 230.0MB in the end (delta: -102.1MB). Peak memory consumption was 21.8MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,233 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:17:28,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.13ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 127.6MB in the beginning and 271.4MB in the end (delta: -143.8MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.60ms. Allocated memory is still 309.3MB. Free memory was 271.4MB in the beginning and 269.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,234 INFO L158 Benchmark]: Boogie Preprocessor took 16.15ms. Allocated memory is still 309.3MB. Free memory was 269.8MB in the beginning and 268.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,235 INFO L158 Benchmark]: RCFGBuilder took 329.21ms. Allocated memory is still 309.3MB. Free memory was 268.2MB in the beginning and 254.6MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,235 INFO L158 Benchmark]: TraceAbstraction took 316.90ms. Allocated memory is still 309.3MB. Free memory was 254.1MB in the beginning and 230.0MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-03-15 13:17:28,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 318.13ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 127.6MB in the beginning and 271.4MB in the end (delta: -143.8MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.60ms. Allocated memory is still 309.3MB. Free memory was 271.4MB in the beginning and 269.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.15ms. Allocated memory is still 309.3MB. Free memory was 269.8MB in the beginning and 268.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 329.21ms. Allocated memory is still 309.3MB. Free memory was 268.2MB in the beginning and 254.6MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 316.90ms. Allocated memory is still 309.3MB. Free memory was 254.1MB in the beginning and 230.0MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, 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, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 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! [2022-03-15 13:17:28,277 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...