/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -i ../sv-benchmarks/c/weaver/chl/collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 16:48:18,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 16:48:18,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 16:48:18,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 16:48:18,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 16:48:18,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 16:48:18,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 16:48:18,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 16:48:18,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 16:48:18,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 16:48:18,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 16:48:18,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 16:48:18,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 16:48:18,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 16:48:18,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 16:48:18,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 16:48:18,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 16:48:18,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 16:48:18,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 16:48:18,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 16:48:18,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 16:48:18,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 16:48:18,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 16:48:18,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 16:48:18,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-06 16:48:18,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-06 16:48:18,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-06 16:48:18,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-06 16:48:18,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-06 16:48:18,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-06 16:48:18,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 16:48:18,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 16:48:18,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 16:48:18,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 16:48:18,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 16:48:18,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 16:48:18,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 16:48:18,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 16:48:18,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 16:48:18,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 16:48:18,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 16:48:18,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-10-06 16:48:18,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 16:48:18,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 16:48:18,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 16:48:18,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 16:48:18,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 16:48:18,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 16:48:18,809 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 16:48:18,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 16:48:18,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 16:48:18,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 16:48:18,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 16:48:18,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 16:48:18,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-06 16:48:18,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 16:48:18,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-06 16:48:18,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 16:48:18,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-06 16:48:18,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 16:48:18,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-06 16:48:18,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 16:48:18,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 16:48:18,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-06 16:48:18,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 16:48:18,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:48:18,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 16:48:18,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 16:48:18,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-06 16:48:18,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-06 16:48:18,817 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-06 16:48:18,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-06 16:48:18,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-06 16:48:18,818 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-06 16:48:18,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-06 16:48:18,818 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-06 16:48:18,819 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-06 16:48:18,819 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 16:48:19,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 16:48:19,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 16:48:19,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 16:48:19,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 16:48:19,256 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 16:48:19,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/collitem-trans.wvr.c [2021-10-06 16:48:19,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43a9f9ab7/1ff6f801220d4e1ead8a9243e8346aa5/FLAG5e7495874 [2021-10-06 16:48:20,006 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 16:48:20,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/collitem-trans.wvr.c [2021-10-06 16:48:20,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43a9f9ab7/1ff6f801220d4e1ead8a9243e8346aa5/FLAG5e7495874 [2021-10-06 16:48:20,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43a9f9ab7/1ff6f801220d4e1ead8a9243e8346aa5 [2021-10-06 16:48:20,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 16:48:20,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-06 16:48:20,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 16:48:20,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 16:48:20,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 16:48:20,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4adc3698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20, skipping insertion in model container [2021-10-06 16:48:20,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 16:48:20,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 16:48:20,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/collitem-trans.wvr.c[3327,3340] [2021-10-06 16:48:20,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:48:20,743 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 16:48:20,772 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/collitem-trans.wvr.c[3327,3340] [2021-10-06 16:48:20,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 16:48:20,791 INFO L208 MainTranslator]: Completed translation [2021-10-06 16:48:20,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20 WrapperNode [2021-10-06 16:48:20,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 16:48:20,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 16:48:20,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 16:48:20,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 16:48:20,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 16:48:20,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 16:48:20,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 16:48:20,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 16:48:20,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 16:48:20,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 16:48:20,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 16:48:20,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 16:48:20,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (1/1) ... [2021-10-06 16:48:20,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 16:48:20,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:48:20,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 16:48:20,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 16:48:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 16:48:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 16:48:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 16:48:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 16:48:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-06 16:48:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-06 16:48:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-06 16:48:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 16:48:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-06 16:48:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 16:48:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 16:48:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 16:48:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 16:48:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-06 16:48:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 16:48:20,982 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 16:48:21,827 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 16:48:21,827 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-06 16:48:21,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:48:21 BoogieIcfgContainer [2021-10-06 16:48:21,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 16:48:21,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 16:48:21,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 16:48:21,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 16:48:21,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 04:48:20" (1/3) ... [2021-10-06 16:48:21,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46333c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:48:21, skipping insertion in model container [2021-10-06 16:48:21,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 04:48:20" (2/3) ... [2021-10-06 16:48:21,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46333c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:48:21, skipping insertion in model container [2021-10-06 16:48:21,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:48:21" (3/3) ... [2021-10-06 16:48:21,840 INFO L111 eAbstractionObserver]: Analyzing ICFG collitem-trans.wvr.c [2021-10-06 16:48:21,846 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-06 16:48:21,846 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 16:48:21,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-06 16:48:21,850 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 16:48:21,885 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,888 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,889 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,903 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:21,913 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-06 16:48:21,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-06 16:48:21,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 16:48:21,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-06 16:48:21,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-06 16:48:22,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-06 16:48:22,024 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 [2021-10-06 16:48:22,024 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-06 16:48:22,161 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-06 16:48:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:48:22,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1634156679, now seen corresponding path program 1 times [2021-10-06 16:48:22,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:48:22,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516106007] [2021-10-06 16:48:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:48:22,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:48:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:48:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:48:22,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:48:22,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516106007] [2021-10-06 16:48:22,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516106007] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:48:22,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:48:22,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-06 16:48:22,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409691538] [2021-10-06 16:48:22,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 16:48:22,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:48:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 16:48:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 16:48:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:22,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-06 16:48:22,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 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) [2021-10-06 16:48:22,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:22,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-06 16:48:22,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-06 16:48:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 16:48:22,590 INFO L82 PathProgramCache]: Analyzing trace with hash -329809374, now seen corresponding path program 1 times [2021-10-06 16:48:22,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-06 16:48:22,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95042973] [2021-10-06 16:48:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 16:48:22,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-06 16:48:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 16:48:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 16:48:26,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-06 16:48:26,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95042973] [2021-10-06 16:48:26,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95042973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-06 16:48:26,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-06 16:48:26,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-06 16:48:26,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805406569] [2021-10-06 16:48:26,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-06 16:48:26,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-06 16:48:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-06 16:48:26,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-06 16:48:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:26,749 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-06 16:48:26,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 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) [2021-10-06 16:48:26,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:27,575 WARN L313 ript$VariableManager]: TermVariabe |v_thread3_#t~ite9_37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:27,579 WARN L313 ript$VariableManager]: TermVariabe v_~result_14~0_56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:27,619 WARN L313 ript$VariableManager]: TermVariabe v_~result_13~0_56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:27,619 WARN L313 ript$VariableManager]: TermVariabe |v_thread2_#t~ite7_29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 16:48:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 16:48:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-06 16:48:27,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-06 16:48:27,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 16:48:27,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 16:48:27,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-06 16:48:27,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-06 16:48:27,686 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 16:48:27,686 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 16:48:27,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 04:48:27 BasicIcfg [2021-10-06 16:48:27,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 16:48:27,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-06 16:48:27,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-06 16:48:27,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-06 16:48:27,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:48:21" (3/4) ... [2021-10-06 16:48:27,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-06 16:48:27,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-06 16:48:27,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-06 16:48:27,700 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-06 16:48:27,707 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-06 16:48:27,707 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-06 16:48:27,707 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-06 16:48:27,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-06 16:48:27,773 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl/collitem-trans.wvr.c-witness.graphml [2021-10-06 16:48:27,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-06 16:48:27,778 INFO L168 Benchmark]: Toolchain (without parser) took 7383.23 ms. Allocated memory was 151.0 MB in the beginning and 226.5 MB in the end (delta: 75.5 MB). Free memory was 126.1 MB in the beginning and 163.9 MB in the end (delta: -37.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,779 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 121.4 MB in the beginning and 121.0 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 16:48:27,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 114.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 113.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,781 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 112.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,784 INFO L168 Benchmark]: RCFGBuilder took 961.44 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 124.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,785 INFO L168 Benchmark]: TraceAbstraction took 5857.06 ms. Allocated memory was 151.0 MB in the beginning and 226.5 MB in the end (delta: 75.5 MB). Free memory was 124.1 MB in the beginning and 168.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,786 INFO L168 Benchmark]: Witness Printer took 83.98 ms. Allocated memory is still 226.5 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-06 16:48:27,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 121.4 MB in the beginning and 121.0 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 392.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 114.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 113.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 151.0 MB. Free memory was 113.3 MB in the beginning and 112.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 961.44 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 124.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5857.06 ms. Allocated memory was 151.0 MB in the beginning and 226.5 MB in the end (delta: 75.5 MB). Free memory was 124.1 MB in the beginning and 168.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Witness Printer took 83.98 ms. Allocated memory is still 226.5 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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: 492, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 126, positive unconditional: 361, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 489, positive: 487, positive conditional: 48, positive unconditional: 439, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 48, positive unconditional: 439, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 259, positive: 257, positive conditional: 1, positive unconditional: 256, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 259, positive: 255, positive conditional: 0, positive unconditional: 255, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 489, positive: 230, positive conditional: 47, positive unconditional: 183, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 259, unknown conditional: 1, unknown unconditional: 258] , Statistics on independence cache: Total cache size (in pairs): 259, Positive cache size: 257, Positive conditional cache size: 1, Positive unconditional cache size: 256, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 78, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 127, Number of persistent set computation: 161, Number of trivial persistent sets: 144, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 252, positive: 250, positive conditional: 0, positive unconditional: 250, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 492, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 5, negative conditional: 3, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 237, positive unconditional: 250, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 126, positive unconditional: 361, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 489, positive: 487, positive conditional: 48, positive unconditional: 439, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 489, positive: 487, positive conditional: 48, positive unconditional: 439, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 259, positive: 257, positive conditional: 1, positive unconditional: 256, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 259, positive: 255, positive conditional: 0, positive unconditional: 255, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 489, positive: 230, positive conditional: 47, positive unconditional: 183, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 259, unknown conditional: 1, unknown unconditional: 258] , Statistics on independence cache: Total cache size (in pairs): 259, Positive cache size: 257, Positive conditional cache size: 1, Positive unconditional cache size: 256, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 78, Maximal queried relation: 0, Independence queries for same thread: 3 - 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 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 125 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5717.1ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.5ms, PartialOrderReductionTime: 1055.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 20.0ms SsaConstructionTime, 372.3ms SatisfiabilityAnalysisTime, 4022.1ms InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-06 16:48:27,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2021-10-06 16:48:28,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...