/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.abstract-por-f0ea240 [2022-02-10 21:50:49,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 21:50:49,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 21:50:49,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 21:50:49,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 21:50:49,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 21:50:49,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 21:50:49,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 21:50:49,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 21:50:49,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 21:50:49,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 21:50:49,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 21:50:49,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 21:50:49,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 21:50:49,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 21:50:49,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 21:50:49,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 21:50:49,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 21:50:49,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 21:50:49,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 21:50:49,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 21:50:49,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 21:50:49,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 21:50:49,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 21:50:49,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 21:50:49,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 21:50:49,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 21:50:49,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 21:50:49,402 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 [2022-02-10 21:50:49,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 21:50:49,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 21:50:49,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 21:50:49,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 21:50:49,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 21:50:49,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 21:50:49,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 21:50:49,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 21:50:49,431 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 21:50:49,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 21:50:49,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 21:50:49,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 21:50:49,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:49,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 21:50:49,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 21:50:49,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 21:50:49,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 21:50:49,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 21:50:49,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 21:50:49,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 21:50:49,664 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 21:50:49,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-10 21:50:49,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbe9f8ba/78d57553e8b249fe88137ab2faabcbb4/FLAGe1ba4c99d [2022-02-10 21:50:50,157 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 21:50:50,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-02-10 21:50:50,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbe9f8ba/78d57553e8b249fe88137ab2faabcbb4/FLAGe1ba4c99d [2022-02-10 21:50:50,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbe9f8ba/78d57553e8b249fe88137ab2faabcbb4 [2022-02-10 21:50:50,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 21:50:50,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 21:50:50,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:50,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 21:50:50,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 21:50:50,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3f949d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50, skipping insertion in model container [2022-02-10 21:50:50,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 21:50:50,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 21:50:50,405 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 21:50:50,514 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] [2022-02-10 21:50:50,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:50,535 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 21:50:50,548 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 21:50:50,567 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] [2022-02-10 21:50:50,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:50,598 INFO L208 MainTranslator]: Completed translation [2022-02-10 21:50:50,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50 WrapperNode [2022-02-10 21:50:50,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:50,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:50,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 21:50:50,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 21:50:50,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,638 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-02-10 21:50:50,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:50,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 21:50:50,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 21:50:50,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 21:50:50,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 21:50:50,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 21:50:50,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 21:50:50,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 21:50:50,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:50,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:50,700 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) [2022-02-10 21:50:50,713 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 [2022-02-10 21:50:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 21:50:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 21:50:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 21:50:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 21:50:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 21:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 21:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 21:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-10 21:50:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-10 21:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 21:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 21:50:50,739 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 21:50:50,862 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 21:50:50,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 21:50:51,044 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 21:50:51,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 21:50:51,049 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-10 21:50:51,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:51 BoogieIcfgContainer [2022-02-10 21:50:51,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 21:50:51,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 21:50:51,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 21:50:51,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 21:50:51,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 09:50:50" (1/3) ... [2022-02-10 21:50:51,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b5a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:51, skipping insertion in model container [2022-02-10 21:50:51,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (2/3) ... [2022-02-10 21:50:51,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b5a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:51, skipping insertion in model container [2022-02-10 21:50:51,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:51" (3/3) ... [2022-02-10 21:50:51,059 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-02-10 21:50:51,065 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 21:50:51,066 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 21:50:51,066 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 21:50:51,066 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 21:50:51,101 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,101 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,101 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,101 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,102 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,103 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,104 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,104 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,106 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:51,109 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 21:50:51,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 21:50:51,157 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, 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 [2022-02-10 21:50:51,158 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 21:50:51,166 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 74 transitions, 156 flow [2022-02-10 21:50:51,200 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) [2022-02-10 21:50:51,204 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) [2022-02-10 21:50:51,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-10 21:50:51,211 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:51,212 INFO L515 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] [2022-02-10 21:50:51,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-02-10 21:50:51,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:51,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716414214] [2022-02-10 21:50:51,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:51,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 21:50:51,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 21:50:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 21:50:51,448 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 21:50:51,449 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 21:50:51,450 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 21:50:51,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 21:50:51,452 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-10 21:50:51,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 21:50:51,455 INFO L733 BasicCegarLoop]: Path program histogram: [1] [2022-02-10 21:50:51,458 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 21:50:51,459 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 21:50:51,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 09:50:51 BasicIcfg [2022-02-10 21:50:51,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 21:50:51,496 INFO L158 Benchmark]: Toolchain (without parser) took 1303.86ms. Allocated memory is still 180.4MB. Free memory was 127.5MB in the beginning and 105.8MB in the end (delta: 21.7MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,496 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 21:50:51,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.93ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 146.1MB in the end (delta: -18.8MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.62ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 144.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,501 INFO L158 Benchmark]: Boogie Preprocessor took 14.94ms. Allocated memory is still 180.4MB. Free memory was 144.1MB in the beginning and 142.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,501 INFO L158 Benchmark]: RCFGBuilder took 396.55ms. Allocated memory is still 180.4MB. Free memory was 142.5MB in the beginning and 130.4MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,502 INFO L158 Benchmark]: TraceAbstraction took 443.45ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 105.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-02-10 21:50:51,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 69.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.93ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 146.1MB in the end (delta: -18.8MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.62ms. Allocated memory is still 180.4MB. Free memory was 146.1MB in the beginning and 144.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.94ms. Allocated memory is still 180.4MB. Free memory was 144.1MB in the beginning and 142.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 396.55ms. Allocated memory is still 180.4MB. Free memory was 142.5MB in the beginning and 130.4MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 443.45ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 105.8MB 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: 0.3s, 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, 0.1s 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! [2022-02-10 21:50:51,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...