/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.partial.order.reduction.in.concurrent.analysis DPOR_SLEEP_NEW_STATES -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-99e0210 [2023-03-23 21:05:37,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-23 21:05:37,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-23 21:05:37,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-23 21:05:37,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-23 21:05:37,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-23 21:05:37,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-23 21:05:37,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-23 21:05:37,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-23 21:05:37,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-23 21:05:37,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-23 21:05:37,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-23 21:05:37,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-23 21:05:37,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-23 21:05:37,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-23 21:05:37,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-23 21:05:37,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-23 21:05:37,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-23 21:05:37,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-23 21:05:37,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-23 21:05:37,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-23 21:05:37,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-23 21:05:37,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-23 21:05:37,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-23 21:05:37,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-23 21:05:37,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-23 21:05:37,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-23 21:05:37,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-23 21:05:37,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-23 21:05:37,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-23 21:05:37,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-23 21:05:37,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-23 21:05:37,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-23 21:05:37,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-23 21:05:37,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-23 21:05:37,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-23 21:05:37,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-23 21:05:37,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-23 21:05:37,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-23 21:05:37,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-23 21:05:37,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-23 21:05:37,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-03-23 21:05:37,705 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-23 21:05:37,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-23 21:05:37,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-23 21:05:37,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-23 21:05:37,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-23 21:05:37,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-23 21:05:37,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Use SBE=true [2023-03-23 21:05:37,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-23 21:05:37,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-23 21:05:37,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 21:05:37,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-23 21:05:37,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-03-23 21:05:37,709 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-03-23 21:05:37,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> DPOR_SLEEP_NEW_STATES [2023-03-23 21:05:37,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-23 21:05:37,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-23 21:05:37,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-23 21:05:37,956 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-23 21:05:37,957 INFO L275 PluginConnector]: CDTParser initialized [2023-03-23 21:05:37,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-03-23 21:05:38,916 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-23 21:05:39,063 INFO L351 CDTParser]: Found 1 translation units. [2023-03-23 21:05:39,063 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2023-03-23 21:05:39,067 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc43db33/8ba3e254619041f9bbf9ef8d0bcee982/FLAG50a9cb8ce [2023-03-23 21:05:39,081 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc43db33/8ba3e254619041f9bbf9ef8d0bcee982 [2023-03-23 21:05:39,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-23 21:05:39,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-03-23 21:05:39,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-23 21:05:39,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-23 21:05:39,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-23 21:05:39,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3307f88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39, skipping insertion in model container [2023-03-23 21:05:39,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-23 21:05:39,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-23 21:05:39,210 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2023-03-23 21:05:39,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 21:05:39,221 INFO L203 MainTranslator]: Completed pre-run [2023-03-23 21:05:39,234 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2023-03-23 21:05:39,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 21:05:39,243 INFO L208 MainTranslator]: Completed translation [2023-03-23 21:05:39,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39 WrapperNode [2023-03-23 21:05:39,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-23 21:05:39,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-03-23 21:05:39,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-03-23 21:05:39,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-03-23 21:05:39,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,270 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-03-23 21:05:39,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-03-23 21:05:39,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-23 21:05:39,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-23 21:05:39,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-23 21:05:39,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-23 21:05:39,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-23 21:05:39,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-23 21:05:39,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-23 21:05:39,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (1/1) ... [2023-03-23 21:05:39,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 21:05:39,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:05:39,326 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) [2023-03-23 21:05:39,358 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 [2023-03-23 21:05:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-23 21:05:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-03-23 21:05:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-03-23 21:05:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-03-23 21:05:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-03-23 21:05:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-03-23 21:05:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-23 21:05:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-23 21:05:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-23 21:05:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-23 21:05:39,375 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-03-23 21:05:39,467 INFO L236 CfgBuilder]: Building ICFG [2023-03-23 21:05:39,469 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-23 21:05:39,749 INFO L277 CfgBuilder]: Performing block encoding [2023-03-23 21:05:39,755 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-23 21:05:39,755 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-23 21:05:39,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 09:05:39 BoogieIcfgContainer [2023-03-23 21:05:39,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-23 21:05:39,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-23 21:05:39,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-23 21:05:39,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-23 21:05:39,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 09:05:39" (1/3) ... [2023-03-23 21:05:39,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252d9df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 09:05:39, skipping insertion in model container [2023-03-23 21:05:39,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 09:05:39" (2/3) ... [2023-03-23 21:05:39,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252d9df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 09:05:39, skipping insertion in model container [2023-03-23 21:05:39,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 09:05:39" (3/3) ... [2023-03-23 21:05:39,762 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2023-03-23 21:05:39,767 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-03-23 21:05:39,773 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-23 21:05:39,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-23 21:05:39,774 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-03-23 21:05:39,871 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-03-23 21:05:39,902 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 21:05:39,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 21:05:39,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:05:39,905 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) [2023-03-23 21:05:39,906 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 [2023-03-23 21:05:39,931 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 21:05:39,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-03-23 21:05:39,943 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@313278fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 21:05:39,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-03-23 21:05:40,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-03-23 21:05:40,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:05:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2020070406, now seen corresponding path program 1 times [2023-03-23 21:05:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:05:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760276346] [2023-03-23 21:05:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:40,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:05:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:41,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:05:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760276346] [2023-03-23 21:05:41,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760276346] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:05:41,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:05:41,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-23 21:05:41,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814429349] [2023-03-23 21:05:41,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:05:41,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-23 21:05:41,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:05:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-23 21:05:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-23 21:05:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:41,116 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:05:41,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 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) [2023-03-23 21:05:41,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:41,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-23 21:05:41,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-03-23 21:05:41,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:05:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -51163533, now seen corresponding path program 1 times [2023-03-23 21:05:41,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:05:41,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262916880] [2023-03-23 21:05:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:41,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:05:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:42,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:05:42,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262916880] [2023-03-23 21:05:42,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262916880] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 21:05:42,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 21:05:42,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-23 21:05:42,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643134123] [2023-03-23 21:05:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 21:05:42,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-23 21:05:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:05:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-23 21:05:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-23 21:05:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:42,066 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:05:42,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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) [2023-03-23 21:05:42,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:42,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:42,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:05:42,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-23 21:05:42,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-03-23 21:05:42,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:05:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1121792229, now seen corresponding path program 1 times [2023-03-23 21:05:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:05:42,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766784073] [2023-03-23 21:05:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:42,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:05:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:05:42,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766784073] [2023-03-23 21:05:42,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766784073] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:05:42,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167717734] [2023-03-23 21:05:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:42,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:05:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:05:42,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 21:05:42,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-23 21:05:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:42,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2023-03-23 21:05:42,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:05:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:43,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:05:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:43,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167717734] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:05:43,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:05:43,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-03-23 21:05:43,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350658274] [2023-03-23 21:05:43,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:05:43,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-23 21:05:43,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:05:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-23 21:05:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-03-23 21:05:43,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:43,169 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:05:43,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 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) [2023-03-23 21:05:43,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:43,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:05:43,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:05:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:05:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-23 21:05:43,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-23 21:05:43,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-03-23 21:05:43,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-03-23 21:05:43,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:05:43,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1680333020, now seen corresponding path program 1 times [2023-03-23 21:05:43,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:05:43,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241517224] [2023-03-23 21:05:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:43,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:05:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:05:44,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:05:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241517224] [2023-03-23 21:05:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241517224] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:05:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007186313] [2023-03-23 21:05:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:05:44,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:05:44,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:05:44,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 21:05:44,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-23 21:05:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:05:56,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 21 conjunts are in the unsatisfiable core [2023-03-23 21:05:56,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 21:08:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:08:37,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-23 21:09:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:09:39,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007186313] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-23 21:09:39,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-23 21:09:39,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2023-03-23 21:09:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734728634] [2023-03-23 21:09:39,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-23 21:09:39,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-03-23 21:09:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:09:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-03-23 21:09:39,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=869, Unknown=53, NotChecked=0, Total=1056 [2023-03-23 21:09:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:09:39,053 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:09:39,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.0) internal successors, (198), 33 states have internal predecessors, (198), 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) [2023-03-23 21:09:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:09:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:09:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-03-23 21:09:39,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:10:31,360 WARN L222 SmtUtils]: Spent 37.59s on a formula simplification. DAG size of input: 70 DAG size of output: 68 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:10:33,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:10:36,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:10:38,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:10:40,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:04,913 WARN L222 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 53 DAG size of output: 44 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:11:09,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:11,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:12,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:14,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:15,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:17,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:19,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:21,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:23,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:26,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:28,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:29,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:32,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:35,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:38,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:39,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:42,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:43,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:45,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:46,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:48,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:51,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:53,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:55,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:11:57,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:25,249 WARN L222 SmtUtils]: Spent 20.62s on a formula simplification. DAG size of input: 66 DAG size of output: 52 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-23 21:12:27,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:30,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:33,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:35,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:37,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:39,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:42,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:44,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:46,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:49,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:51,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:53,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:55,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:57,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:12:59,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:02,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:04,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:06,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:09,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:10,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:11,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:14,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:16,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:18,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:20,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:21,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:23,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:24,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:27,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:28,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-23 21:13:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:13:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:13:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-23 21:13:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-23 21:13:34,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-23 21:13:34,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:13:34,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-03-23 21:13:34,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 21:13:34,465 INFO L85 PathProgramCache]: Analyzing trace with hash 293505484, now seen corresponding path program 2 times [2023-03-23 21:13:34,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 21:13:34,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701366670] [2023-03-23 21:13:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 21:13:34,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 21:13:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 21:13:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 21:13:35,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 21:13:35,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701366670] [2023-03-23 21:13:35,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701366670] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-23 21:13:35,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918667359] [2023-03-23 21:13:35,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-23 21:13:35,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 21:13:35,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 21:13:35,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 21:13:35,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Received shutdown request... [2023-03-23 21:15:20,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-03-23 21:15:20,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-03-23 21:15:20,005 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-03-23 21:15:21,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-03-23 21:15:21,021 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 [2023-03-23 21:15:21,209 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2023-03-23 21:15:21,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-23 21:15:21,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-03-23 21:15:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-03-23 21:15:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955023003] [2023-03-23 21:15:21,215 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-03-23 21:15:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-23 21:15:21,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 21:15:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-23 21:15:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-03-23 21:15:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:15:21,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 21:15:21,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 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) [2023-03-23 21:15:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:15:21,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-03-23 21:15:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-03-23 21:15:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-03-23 21:15:21,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 21:15:21,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 137 [2023-03-23 21:15:21,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-23 21:15:21,219 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2023-03-23 21:15:21,221 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-03-23 21:15:21,221 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-03-23 21:15:21,221 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-03-23 21:15:21,221 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-03-23 21:15:21,221 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-03-23 21:15:21,223 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-03-23 21:15:21,225 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-03-23 21:15:21,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-23 21:15:21,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 09:15:21 BasicIcfg [2023-03-23 21:15:21,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-23 21:15:21,227 INFO L158 Benchmark]: Toolchain (without parser) took 582143.08ms. Allocated memory was 183.5MB in the beginning and 352.3MB in the end (delta: 168.8MB). Free memory was 131.0MB in the beginning and 160.2MB in the end (delta: -29.2MB). Peak memory consumption was 141.2MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,227 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-23 21:15:21,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.31ms. Allocated memory is still 183.5MB. Free memory was 130.7MB in the beginning and 119.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.89ms. Allocated memory is still 183.5MB. Free memory was 119.6MB in the beginning and 117.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,228 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 183.5MB. Free memory was 117.8MB in the beginning and 116.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,228 INFO L158 Benchmark]: RCFGBuilder took 463.97ms. Allocated memory is still 183.5MB. Free memory was 116.4MB in the beginning and 101.3MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,228 INFO L158 Benchmark]: TraceAbstraction took 581468.74ms. Allocated memory was 183.5MB in the beginning and 352.3MB in the end (delta: 168.8MB). Free memory was 100.7MB in the beginning and 160.2MB in the end (delta: -59.5MB). Peak memory consumption was 110.8MB. Max. memory is 8.0GB. [2023-03-23 21:15:21,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 157.31ms. Allocated memory is still 183.5MB. Free memory was 130.7MB in the beginning and 119.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.89ms. Allocated memory is still 183.5MB. Free memory was 119.6MB in the beginning and 117.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 183.5MB. Free memory was 117.8MB in the beginning and 116.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 463.97ms. Allocated memory is still 183.5MB. Free memory was 116.4MB in the beginning and 101.3MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 581468.74ms. Allocated memory was 183.5MB in the beginning and 352.3MB in the end (delta: 168.8MB). Free memory was 100.7MB in the beginning and 160.2MB in the end (delta: -59.5MB). Peak memory consumption was 110.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 388749, independent: 355734, independent conditional: 22495, independent unconditional: 333239, dependent: 33015, dependent conditional: 4591, dependent unconditional: 28424, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 361003, independent: 355734, independent conditional: 22495, independent unconditional: 333239, dependent: 5269, dependent conditional: 0, dependent unconditional: 5269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 361003, independent: 355734, independent conditional: 22495, independent unconditional: 333239, dependent: 5269, dependent conditional: 0, dependent unconditional: 5269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 361003, independent: 355734, independent conditional: 0, independent unconditional: 355734, dependent: 5269, dependent conditional: 0, dependent unconditional: 5269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 361003, independent: 355734, independent conditional: 0, independent unconditional: 355734, dependent: 5269, dependent conditional: 0, dependent unconditional: 5269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 361003, independent: 355734, independent conditional: 0, independent unconditional: 355734, dependent: 5269, dependent conditional: 0, dependent unconditional: 5269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3109, independent: 3049, independent conditional: 0, independent unconditional: 3049, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3109, independent: 3029, independent conditional: 0, independent unconditional: 3029, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 80, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 262, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 361003, independent: 352685, independent conditional: 0, independent unconditional: 352685, dependent: 5209, dependent conditional: 0, dependent unconditional: 5209, unknown: 3109, unknown conditional: 0, unknown unconditional: 3109] , Statistics on independence cache: Total cache size (in pairs): 3109, Positive cache size: 3049, Positive conditional cache size: 0, Positive unconditional cache size: 3049, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 27746 - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 146 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 581.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 237.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 11.7s SatisfiabilityAnalysisTime, 226.0s InterpolantComputationTime, 666 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 15537 SizeOfPredicates, 23 NumberOfNonLiveVariables, 509 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 0/15 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 could not prove your program: Timeout Completed graceful shutdown