/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-23 00:39:43,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-23 00:39:43,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-23 00:39:43,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-23 00:39:43,846 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-08-23 00:39:43,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-23 00:39:43,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-23 00:39:43,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-23 00:39:43,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-23 00:39:43,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-23 00:39:43,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-23 00:39:43,889 INFO L138 SettingsManager]: * Use SBE=true [2021-08-23 00:39:43,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-23 00:39:43,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-23 00:39:43,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-23 00:39:43,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-23 00:39:43,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-23 00:39:43,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-23 00:39:43,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-23 00:39:43,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-23 00:39:43,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-23 00:39:43,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-23 00:39:43,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-23 00:39:43,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-23 00:39:43,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-23 00:39:43,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-23 00:39:43,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-23 00:39:43,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-23 00:39:43,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 00:39:43,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-23 00:39:43,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-23 00:39:43,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-23 00:39:43,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-23 00:39:43,903 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-23 00:39:43,903 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-23 00:39:43,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-23 00:39:44,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-23 00:39:44,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-23 00:39:44,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-23 00:39:44,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-23 00:39:44,264 INFO L275 PluginConnector]: CDTParser initialized [2021-08-23 00:39:44,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-23 00:39:44,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e749f7cd/23111f99011b438ca1d6bff5225327e6/FLAGbe99d4936 [2021-08-23 00:39:44,881 INFO L306 CDTParser]: Found 1 translation units. [2021-08-23 00:39:44,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-23 00:39:44,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e749f7cd/23111f99011b438ca1d6bff5225327e6/FLAGbe99d4936 [2021-08-23 00:39:45,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e749f7cd/23111f99011b438ca1d6bff5225327e6 [2021-08-23 00:39:45,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-23 00:39:45,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-23 00:39:45,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-23 00:39:45,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-23 00:39:45,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-23 00:39:45,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 12:39:45" (1/1) ... [2021-08-23 00:39:45,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c99a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:45, skipping insertion in model container [2021-08-23 00:39:45,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 12:39:45" (1/1) ... [2021-08-23 00:39:45,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-23 00:39:45,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-23 00:39:46,119 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-23 00:39:46,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-23 00:39:46,163 INFO L203 MainTranslator]: Completed pre-run [2021-08-23 00:39:46,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-23 00:39:46,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-23 00:39:46,310 INFO L208 MainTranslator]: Completed translation [2021-08-23 00:39:46,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46 WrapperNode [2021-08-23 00:39:46,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-23 00:39:46,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-23 00:39:46,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-23 00:39:46,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-23 00:39:46,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-23 00:39:46,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-23 00:39:46,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-23 00:39:46,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-23 00:39:46,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-23 00:39:46,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-23 00:39:46,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-23 00:39:46,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-23 00:39:46,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (1/1) ... [2021-08-23 00:39:46,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 00:39:46,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 00:39:46,438 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) [2021-08-23 00:39:46,439 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 [2021-08-23 00:39:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-23 00:39:46,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-23 00:39:46,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-23 00:39:46,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-23 00:39:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-23 00:39:46,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-23 00:39:46,473 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-23 00:39:47,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-23 00:39:47,087 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-23 00:39:47,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 12:39:47 BoogieIcfgContainer [2021-08-23 00:39:47,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-23 00:39:47,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-23 00:39:47,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-23 00:39:47,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-23 00:39:47,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 12:39:45" (1/3) ... [2021-08-23 00:39:47,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14701ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 12:39:47, skipping insertion in model container [2021-08-23 00:39:47,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 12:39:46" (2/3) ... [2021-08-23 00:39:47,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14701ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 12:39:47, skipping insertion in model container [2021-08-23 00:39:47,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 12:39:47" (3/3) ... [2021-08-23 00:39:47,095 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-08-23 00:39:47,099 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-23 00:39:47,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-23 00:39:47,100 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-23 00:39:47,100 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-23 00:39:47,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,121 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,121 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,121 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,122 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,122 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,123 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,124 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,126 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,126 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,127 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,127 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,127 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 00:39:47,133 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-23 00:39:47,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-23 00:39:47,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 00:39:47,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-23 00:39:47,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-23 00:39:47,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-23 00:39:47,203 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=PARTIAL_ORDER_FA, 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 [2021-08-23 00:39:47,204 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-23 00:39:47,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-23 00:39:47,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 00:39:47,239 INFO L82 PathProgramCache]: Analyzing trace with hash -877078411, now seen corresponding path program 1 times [2021-08-23 00:39:47,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 00:39:47,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391103069] [2021-08-23 00:39:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 00:39:47,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 00:39:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 00:39:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 00:39:47,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 00:39:47,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391103069] [2021-08-23 00:39:47,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391103069] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 00:39:47,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 00:39:47,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-23 00:39:47,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747721736] [2021-08-23 00:39:47,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-23 00:39:47,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 00:39:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-23 00:39:47,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-23 00:39:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:47,582 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 00:39:47,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-08-23 00:39:47,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-23 00:39:47,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-23 00:39:47,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-23 00:39:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 00:39:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1505333080, now seen corresponding path program 1 times [2021-08-23 00:39:47,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 00:39:47,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449990244] [2021-08-23 00:39:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 00:39:47,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 00:39:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 00:39:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 00:39:47,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 00:39:47,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449990244] [2021-08-23 00:39:47,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449990244] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 00:39:47,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 00:39:47,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-23 00:39:47,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600007789] [2021-08-23 00:39:47,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-23 00:39:47,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 00:39:47,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-23 00:39:47,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-23 00:39:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:47,796 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 00:39:47,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-08-23 00:39:47,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-23 00:39:47,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-23 00:39:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 00:39:47,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-23 00:39:47,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-23 00:39:47,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 00:39:47,832 INFO L82 PathProgramCache]: Analyzing trace with hash 127875897, now seen corresponding path program 1 times [2021-08-23 00:39:47,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 00:39:47,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772794478] [2021-08-23 00:39:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 00:39:47,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 00:39:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 00:39:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-23 00:39:47,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 00:39:47,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772794478] [2021-08-23 00:39:47,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772794478] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-23 00:39:47,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-23 00:39:47,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-23 00:39:47,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274603061] [2021-08-23 00:39:47,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-23 00:39:47,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 00:39:47,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-23 00:39:47,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-23 00:39:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:47,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 00:39:47,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-23 00:39:47,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-23 00:39:47,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-23 00:39:47,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 00:39:48,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-23 00:39:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-23 00:39:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-23 00:39:48,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-23 00:39:48,055 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-23 00:39:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 00:39:48,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1529587188, now seen corresponding path program 2 times [2021-08-23 00:39:48,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 00:39:48,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104738895] [2021-08-23 00:39:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 00:39:48,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 00:39:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-23 00:39:48,093 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-23 00:39:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-23 00:39:48,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-23 00:39:48,182 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-23 00:39:48,183 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-23 00:39:48,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-23 00:39:48,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-23 00:39:48,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-23 00:39:48,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-23 00:39:48,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-23 00:39:48,204 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-23 00:39:48,204 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-23 00:39:48,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 12:39:48 BasicIcfg [2021-08-23 00:39:48,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-23 00:39:48,266 INFO L168 Benchmark]: Toolchain (without parser) took 2951.66 ms. Allocated memory was 184.5 MB in the beginning and 227.5 MB in the end (delta: 43.0 MB). Free memory was 146.0 MB in the beginning and 162.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,266 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 184.5 MB. Free memory is still 166.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-23 00:39:48,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 993.02 ms. Allocated memory is still 184.5 MB. Free memory was 145.7 MB in the beginning and 125.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 184.5 MB. Free memory was 125.1 MB in the beginning and 122.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,267 INFO L168 Benchmark]: Boogie Preprocessor took 38.37 ms. Allocated memory is still 184.5 MB. Free memory was 122.0 MB in the beginning and 120.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,267 INFO L168 Benchmark]: RCFGBuilder took 684.70 ms. Allocated memory is still 184.5 MB. Free memory was 119.8 MB in the beginning and 135.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,268 INFO L168 Benchmark]: TraceAbstraction took 1173.80 ms. Allocated memory was 184.5 MB in the beginning and 227.5 MB in the end (delta: 43.0 MB). Free memory was 135.1 MB in the beginning and 162.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-08-23 00:39:48,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 184.5 MB. Free memory is still 166.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 993.02 ms. Allocated memory is still 184.5 MB. Free memory was 145.7 MB in the beginning and 125.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 184.5 MB. Free memory was 125.1 MB in the beginning and 122.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.37 ms. Allocated memory is still 184.5 MB. Free memory was 122.0 MB in the beginning and 120.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 684.70 ms. Allocated memory is still 184.5 MB. Free memory was 119.8 MB in the beginning and 135.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1173.80 ms. Allocated memory was 184.5 MB in the beginning and 227.5 MB in the end (delta: 43.0 MB). Free memory was 135.1 MB in the beginning and 162.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 319, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 34, negative conditional: 30, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 292, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 7, negative conditional: 3, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 292, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 7, negative conditional: 3, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 299, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 14, negative conditional: 7, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 299, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 299, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 175, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 175, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 21, negative conditional: 2, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 299, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 175, unknown conditional: 1, unknown unconditional: 174] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Eliminated conditions: 121, Maximal queried relation: 3, Independence queries for same thread: 27 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 42, Number of persistent set computation: 97, Number of trivial persistent sets: 84, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 174, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 319, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 34, negative conditional: 30, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 292, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 7, negative conditional: 3, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 292, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 7, negative conditional: 3, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 299, positive: 285, positive conditional: 115, positive unconditional: 170, negative: 14, negative conditional: 7, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 299, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 299, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 175, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 175, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 21, negative conditional: 2, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 299, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 175, unknown conditional: 1, unknown unconditional: 174] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Eliminated conditions: 121, Maximal queried relation: 3, Independence queries for same thread: 27 - 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: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={9:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={9:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1713] 0 return 0; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1721] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=4, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1705] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1035.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 231.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, 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: 12.5ms SsaConstructionTime, 94.0ms SatisfiabilityAnalysisTime, 336.0ms InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-08-23 00:39:48,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-23 00:39:48,516 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...