./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix020.oepc.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 5 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix020.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 5 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 19:21:47,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 19:21:47,469 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 19:21:47,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 19:21:47,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 19:21:47,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 19:21:47,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 19:21:47,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 19:21:47,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 19:21:47,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 19:21:47,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 19:21:47,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 19:21:47,507 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 19:21:47,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 19:21:47,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 19:21:47,508 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 19:21:47,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 19:21:47,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 19:21:47,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 19:21:47,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 19:21:47,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 19:21:47,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 19:21:47,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 19:21:47,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 19:21:47,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 19:21:47,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 19:21:47,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 19:21:47,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 19:21:47,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 19:21:47,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 19:21:47,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 19:21:47,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 19:21:47,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 19:21:47,516 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 19:21:47,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 19:21:47,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 19:21:47,519 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 19:21:47,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 19:21:47,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 19:21:47,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 19:21:47,520 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 19:21:47,520 INFO L153 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/UGemCutter-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.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 5 [2024-10-18 19:21:47,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 19:21:47,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 19:21:47,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 19:21:47,807 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 19:21:47,807 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 19:21:47,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/mix020.oepc.i [2024-10-18 19:21:49,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 19:21:49,466 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 19:21:49,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix020.oepc.i [2024-10-18 19:21:49,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3bebcd79f/d880095095314c71bad52742adf1dc2b/FLAGb8d2f62cf [2024-10-18 19:21:49,787 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3bebcd79f/d880095095314c71bad52742adf1dc2b [2024-10-18 19:21:49,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 19:21:49,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 19:21:49,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 19:21:49,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 19:21:49,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 19:21:49,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 07:21:49" (1/1) ... [2024-10-18 19:21:49,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437c93a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:49, skipping insertion in model container [2024-10-18 19:21:49,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 07:21:49" (1/1) ... [2024-10-18 19:21:49,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 19:21:50,072 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix020.oepc.i[945,958] [2024-10-18 19:21:50,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 19:21:50,382 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 19:21:50,398 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix020.oepc.i[945,958] [2024-10-18 19:21:50,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 19:21:50,507 INFO L204 MainTranslator]: Completed translation [2024-10-18 19:21:50,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50 WrapperNode [2024-10-18 19:21:50,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 19:21:50,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 19:21:50,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 19:21:50,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 19:21:50,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,574 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-10-18 19:21:50,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 19:21:50,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 19:21:50,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 19:21:50,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 19:21:50,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,608 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 19:21:50,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 19:21:50,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 19:21:50,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 19:21:50,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (1/1) ... [2024-10-18 19:21:50,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 19:21:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 19:21:50,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 19:21:50,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 19:21:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 19:21:50,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 19:21:50,702 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-18 19:21:50,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-18 19:21:50,702 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-18 19:21:50,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-18 19:21:50,702 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-18 19:21:50,702 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-18 19:21:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-18 19:21:50,703 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-18 19:21:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 19:21:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 19:21:50,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 19:21:50,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 19:21:50,705 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 19:21:50,825 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 19:21:50,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 19:21:51,145 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 19:21:51,146 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 19:21:51,330 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 19:21:51,330 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-18 19:21:51,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 07:21:51 BoogieIcfgContainer [2024-10-18 19:21:51,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 19:21:51,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 19:21:51,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 19:21:51,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 19:21:51,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 07:21:49" (1/3) ... [2024-10-18 19:21:51,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515d5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 07:21:51, skipping insertion in model container [2024-10-18 19:21:51,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 07:21:50" (2/3) ... [2024-10-18 19:21:51,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515d5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 07:21:51, skipping insertion in model container [2024-10-18 19:21:51,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 07:21:51" (3/3) ... [2024-10-18 19:21:51,342 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.oepc.i [2024-10-18 19:21:51,358 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 19:21:51,358 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-18 19:21:51,358 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 19:21:51,433 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-18 19:21:51,475 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 19:21:51,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 19:21:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 19:21:51,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 19:21:51,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 19:21:51,584 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 19:21:51,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 19:21:51,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 19:21:51,616 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@695dc1e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=5, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 19:21:51,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-18 19:22:26,504 INFO L396 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)] === [2024-10-18 19:22:26,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 19:22:26,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1490497463, now seen corresponding path program 1 times [2024-10-18 19:22:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 19:22:26,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782342711] [2024-10-18 19:22:26,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:26,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:27,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 19:22:27,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782342711] [2024-10-18 19:22:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782342711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 19:22:27,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 19:22:27,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-18 19:22:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611102731] [2024-10-18 19:22:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 19:22:27,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 19:22:27,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 19:22:27,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 19:22:27,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-18 19:22:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:22:27,559 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 19:22:27,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2024-10-18 19:22:27,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:22:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1621832263, now seen corresponding path program 1 times [2024-10-18 19:22:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:31,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:22:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:22:31,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,SelfDestructingSolverStorable0 [2024-10-18 19:22:31,224 INFO L396 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)] === [2024-10-18 19:22:31,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 19:22:31,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1512614995, now seen corresponding path program 1 times [2024-10-18 19:22:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 19:22:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788589875] [2024-10-18 19:22:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:31,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:31,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 19:22:31,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788589875] [2024-10-18 19:22:31,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788589875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 19:22:31,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 19:22:31,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-18 19:22:31,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580703408] [2024-10-18 19:22:31,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 19:22:31,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 19:22:31,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 19:22:31,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 19:22:31,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-18 19:22:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:22:31,653 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 19:22:31,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-10-18 19:22:31,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:22:31,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:22:31,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1621832256, now seen corresponding path program 1 times [2024-10-18 19:22:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:31,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:31,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:22:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1100356916, now seen corresponding path program 1 times [2024-10-18 19:22:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:32,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:32,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:22:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash -822227113, now seen corresponding path program 1 times [2024-10-18 19:22:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:33,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:33,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:34,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 19:22:34,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-18 19:22:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1621832233, now seen corresponding path program 1 times [2024-10-18 19:22:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:34,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:34,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:22:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:34,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1100356893, now seen corresponding path program 1 times [2024-10-18 19:22:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:34,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:34,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:22:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:22:36,393 INFO L85 PathProgramCache]: Analyzing trace with hash -822227098, now seen corresponding path program 1 times [2024-10-18 19:22:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:36,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:22:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:22:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:22:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:22:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 19:22:37,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-18 19:23:33,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1409937324, now seen corresponding path program 1 times [2024-10-18 19:23:33,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:23:33,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:23:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:23:33,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:23:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:24:11,585 INFO L85 PathProgramCache]: Analyzing trace with hash -875572047, now seen corresponding path program 1 times [2024-10-18 19:24:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:24:11,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:24:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:24:11,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:24:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:24:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:24:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:24:11,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9 [2024-10-18 19:24:11,776 INFO L396 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)] === [2024-10-18 19:24:11,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 19:24:11,777 INFO L85 PathProgramCache]: Analyzing trace with hash -279833999, now seen corresponding path program 2 times [2024-10-18 19:24:11,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 19:24:11,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671182625] [2024-10-18 19:24:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:24:11,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:24:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:24:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:24:12,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 19:24:12,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671182625] [2024-10-18 19:24:12,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671182625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 19:24:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 19:24:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-18 19:24:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416299425] [2024-10-18 19:24:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 19:24:12,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-18 19:24:12,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 19:24:12,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-18 19:24:12,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-18 19:24:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:24:12,597 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 19:24:12,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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) [2024-10-18 19:24:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:24:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 19:24:12,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 19:24:50,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1409937254, now seen corresponding path program 1 times [2024-10-18 19:24:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:24:50,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:24:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:24:50,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:24:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:25:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash -875571979, now seen corresponding path program 1 times [2024-10-18 19:25:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:25:19,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:25:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:25:19,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:25:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:25:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash -27139751, now seen corresponding path program 1 times [2024-10-18 19:25:42,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:25:42,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:25:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:25:42,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:25:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:27:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1787633892, now seen corresponding path program 1 times [2024-10-18 19:27:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:27:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:27:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:27:29,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:27:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:27:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:27:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:27:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:27:29,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 19:27:29,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-18 19:29:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1345562182, now seen corresponding path program 1 times [2024-10-18 19:29:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:29:49,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:29:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:29:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:29:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:29:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:29:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 19:29:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 19:29:50,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 19:29:50,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-18 19:34:17,296 INFO L85 PathProgramCache]: Analyzing trace with hash 341095816, now seen corresponding path program 1 times [2024-10-18 19:34:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 19:34:17,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 19:34:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 19:34:17,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 19:34:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat Killed by 15