./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-hard1.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/test-hard1.wvr.c -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 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 22:33:46,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 22:33:46,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 22:33:46,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 22:33:46,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 22:33:46,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 22:33:46,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 22:33:46,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 22:33:46,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 22:33:46,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 22:33:46,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 22:33:46,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 22:33:46,471 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 22:33:46,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 22:33:46,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 22:33:46,471 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 22:33:46,472 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 22:33:46,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:33:46,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 22:33:46,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 22:33:46,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 22:33:46,474 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 22:33:46,474 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 22:33:46,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 34f393fd72a97393a0a39d407b9330aa7c1c7e210ad76310ea88c9427f882106 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 22:33:46,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 22:33:46,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 22:33:46,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 22:33:46,735 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 22:33:46,735 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 22:33:46,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/test-hard1.wvr.c [2025-03-19 22:33:48,077 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8ccaa2180/92f33ac4f96140ddb8275fd428c9a130/FLAG2f45eed14 [2025-03-19 22:33:48,225 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 22:33:48,227 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-hard1.wvr.c [2025-03-19 22:33:48,233 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8ccaa2180/92f33ac4f96140ddb8275fd428c9a130/FLAG2f45eed14 [2025-03-19 22:33:49,128 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8ccaa2180/92f33ac4f96140ddb8275fd428c9a130 [2025-03-19 22:33:49,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 22:33:49,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 22:33:49,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 22:33:49,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 22:33:49,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 22:33:49,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dee3515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49, skipping insertion in model container [2025-03-19 22:33:49,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 22:33:49,286 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-hard1.wvr.c[3425,3438] [2025-03-19 22:33:49,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:33:49,298 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 22:33:49,324 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-hard1.wvr.c[3425,3438] [2025-03-19 22:33:49,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:33:49,335 INFO L204 MainTranslator]: Completed translation [2025-03-19 22:33:49,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49 WrapperNode [2025-03-19 22:33:49,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 22:33:49,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 22:33:49,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 22:33:49,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 22:33:49,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,357 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2025-03-19 22:33:49,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 22:33:49,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 22:33:49,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 22:33:49,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 22:33:49,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 22:33:49,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 22:33:49,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 22:33:49,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 22:33:49,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (1/1) ... [2025-03-19 22:33:49,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:33:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:33:49,401 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) [2025-03-19 22:33:49,403 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 [2025-03-19 22:33:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 22:33:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 22:33:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-19 22:33:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-19 22:33:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 22:33:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 22:33:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 22:33:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 22:33:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 22:33:49,423 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 22:33:49,506 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 22:33:49,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 22:33:49,701 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 22:33:49,701 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 22:33:49,862 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 22:33:49,862 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 22:33:49,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:33:49 BoogieIcfgContainer [2025-03-19 22:33:49,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 22:33:49,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 22:33:49,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 22:33:49,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 22:33:49,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:33:49" (1/3) ... [2025-03-19 22:33:49,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb095d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:33:49, skipping insertion in model container [2025-03-19 22:33:49,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:33:49" (2/3) ... [2025-03-19 22:33:49,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb095d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:33:49, skipping insertion in model container [2025-03-19 22:33:49,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:33:49" (3/3) ... [2025-03-19 22:33:49,875 INFO L128 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2025-03-19 22:33:49,886 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 22:33:49,888 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-hard1.wvr.c that has 5 procedures, 41 locations, 40 edges, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-19 22:33:49,888 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 22:33:49,953 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-19 22:33:50,009 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:33:50,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 22:33:50,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:33:50,013 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) [2025-03-19 22:33:50,015 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 [2025-03-19 22:33:50,081 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 22:33:50,088 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 22:33:50,097 INFO L340 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;@7963c8c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:33:50,097 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-19 22:33:50,909 INFO L403 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)] === [2025-03-19 22:33:50,913 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:33:50,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2098006241, now seen corresponding path program 1 times [2025-03-19 22:33:50,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:33:50,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948764538] [2025-03-19 22:33:50,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:33:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:33:50,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-19 22:33:51,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-19 22:33:51,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:33:51,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:33:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:33:51,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948764538] [2025-03-19 22:33:51,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948764538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:33:51,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:33:51,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 22:33:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807952226] [2025-03-19 22:33:51,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:33:51,753 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 22:33:51,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:33:51,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 22:33:51,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-19 22:33:51,770 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:51,772 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:33:51,774 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-19 22:33:51,774 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:52,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:52,052 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 22:33:52,052 INFO L403 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)] === [2025-03-19 22:33:52,053 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:33:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1275859472, now seen corresponding path program 2 times [2025-03-19 22:33:52,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:33:52,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858512534] [2025-03-19 22:33:52,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 22:33:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:33:52,069 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-03-19 22:33:52,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 72 of 102 statements. [2025-03-19 22:33:52,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 22:33:52,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-19 22:33:52,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:33:52,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858512534] [2025-03-19 22:33:52,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858512534] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:33:52,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:33:52,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 22:33:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123723068] [2025-03-19 22:33:52,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:33:52,455 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 22:33:52,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:33:52,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 22:33:52,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-19 22:33:52,456 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:52,458 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:33:52,458 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2025-03-19 22:33:52,458 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:52,458 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:52,708 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:52,709 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:52,709 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 22:33:52,709 INFO L403 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)] === [2025-03-19 22:33:52,710 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:33:52,710 INFO L85 PathProgramCache]: Analyzing trace with hash 476392406, now seen corresponding path program 3 times [2025-03-19 22:33:52,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:33:52,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222984119] [2025-03-19 22:33:52,710 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 22:33:52,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:33:52,724 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 108 statements into 2 equivalence classes. [2025-03-19 22:33:52,818 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-19 22:33:52,819 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 22:33:52,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-19 22:33:53,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:33:53,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222984119] [2025-03-19 22:33:53,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222984119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:33:53,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:33:53,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:33:53,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262951212] [2025-03-19 22:33:53,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:33:53,272 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:33:53,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:33:53,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:33:53,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:33:53,272 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:53,272 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:33:53,272 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2025-03-19 22:33:53,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,272 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:53,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:33:53,482 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-19 22:33:53,482 INFO L403 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)] === [2025-03-19 22:33:53,482 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:33:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash -210532995, now seen corresponding path program 4 times [2025-03-19 22:33:53,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:33:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420376799] [2025-03-19 22:33:53,483 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 22:33:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:33:53,494 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-03-19 22:33:53,557 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-19 22:33:53,557 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 22:33:53,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-19 22:33:53,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:33:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420376799] [2025-03-19 22:33:53,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420376799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:33:53,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:33:53,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:33:53,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090959330] [2025-03-19 22:33:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:33:53,870 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:33:53,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:33:53,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:33:53,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:33:53,873 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:53,873 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:33:53,873 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-03-19 22:33:53,873 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,873 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:53,873 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:33:53,873 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:33:54,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:54,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:33:54,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:33:54,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:33:54,059 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-19 22:33:54,059 INFO L403 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)] === [2025-03-19 22:33:54,060 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:33:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash -837065710, now seen corresponding path program 5 times [2025-03-19 22:33:54,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:33:54,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657258900] [2025-03-19 22:33:54,061 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 22:33:54,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:33:54,073 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 3 equivalence classes. [2025-03-19 22:33:54,169 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 108 of 108 statements. [2025-03-19 22:33:54,169 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 22:33:54,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 31 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 22:33:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:33:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657258900] [2025-03-19 22:33:56,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657258900] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 22:33:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496668459] [2025-03-19 22:33:56,952 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 22:33:56,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:33:56,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:33:56,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:33:56,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 22:33:57,011 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 3 equivalence classes. [2025-03-19 22:33:57,150 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 108 of 108 statements. [2025-03-19 22:33:57,150 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 22:33:57,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:33:57,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-03-19 22:33:57,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:34:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-19 22:34:02,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:34:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:34:03,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496668459] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:34:03,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 22:34:03,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 28, 35] total 92 [2025-03-19 22:34:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146297492] [2025-03-19 22:34:03,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 22:34:03,578 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2025-03-19 22:34:03,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:34:03,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2025-03-19 22:34:03,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1796, Invalid=6760, Unknown=0, NotChecked=0, Total=8556 [2025-03-19 22:34:03,583 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:34:03,583 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:34:03,584 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 3.086021505376344) internal successors, (287), 92 states have internal predecessors, (287), 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) [2025-03-19 22:34:03,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:03,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:03,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:03,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:03,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:34:15,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:15,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:15,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:15,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:15,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-03-19 22:34:15,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-19 22:34:16,042 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:34:16,043 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 22:34:16,043 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:34:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1182296672, now seen corresponding path program 6 times [2025-03-19 22:34:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:34:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270020762] [2025-03-19 22:34:16,043 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 22:34:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:34:16,055 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 246 statements into 9 equivalence classes. [2025-03-19 22:34:16,075 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 66 of 246 statements. [2025-03-19 22:34:16,077 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-19 22:34:16,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:34:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2025-03-19 22:34:16,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:34:16,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270020762] [2025-03-19 22:34:16,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270020762] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:34:16,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:34:16,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:34:16,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721560561] [2025-03-19 22:34:16,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:34:16,228 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:34:16,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:34:16,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:34:16,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:34:16,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:34:16,229 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:34:16,229 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2025-03-19 22:34:16,230 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:34:16,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:16,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:16,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:16,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:16,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-03-19 22:34:16,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:16,413 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-19 22:34:16,414 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 22:34:16,414 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:34:16,414 INFO L85 PathProgramCache]: Analyzing trace with hash 306123030, now seen corresponding path program 7 times [2025-03-19 22:34:16,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:34:16,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887722319] [2025-03-19 22:34:16,414 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 22:34:16,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:34:16,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-03-19 22:34:16,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-03-19 22:34:16,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:34:16,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:34:24,690 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 137 proven. 358 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-19 22:34:24,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:34:24,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887722319] [2025-03-19 22:34:24,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887722319] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 22:34:24,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579026242] [2025-03-19 22:34:24,691 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 22:34:24,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:34:24,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:34:24,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:34:24,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 22:34:24,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-03-19 22:34:24,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-03-19 22:34:24,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:34:24,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:34:24,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 112 conjuncts are in the unsatisfiable core [2025-03-19 22:34:24,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:34:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 30 proven. 451 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-19 22:34:39,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:34:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:34:45,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579026242] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:34:45,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 22:34:45,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 67, 98] total 228 [2025-03-19 22:34:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883847415] [2025-03-19 22:34:45,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 22:34:45,943 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 229 states [2025-03-19 22:34:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:34:45,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 229 interpolants. [2025-03-19 22:34:45,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11109, Invalid=41103, Unknown=0, NotChecked=0, Total=52212 [2025-03-19 22:34:45,954 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:34:45,955 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:34:45,955 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 229 states, 229 states have (on average 2.576419213973799) internal successors, (590), 228 states have internal predecessors, (590), 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) [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:34:45,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:19,095 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 887 states. [2025-03-19 22:37:19,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-19 22:37:19,296 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:37:19,296 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 22:37:19,296 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:37:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1262339861, now seen corresponding path program 8 times [2025-03-19 22:37:19,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:37:19,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721824343] [2025-03-19 22:37:19,296 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 22:37:19,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:37:19,312 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 441 statements into 2 equivalence classes. [2025-03-19 22:37:19,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 441 of 441 statements. [2025-03-19 22:37:19,405 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 22:37:19,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:37:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2672 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 2571 trivial. 0 not checked. [2025-03-19 22:37:20,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:37:20,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721824343] [2025-03-19 22:37:20,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721824343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:37:20,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:37:20,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:37:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753132883] [2025-03-19 22:37:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:37:20,113 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:37:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:37:20,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:37:20,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:37:20,113 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:37:20,113 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:37:20,113 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2025-03-19 22:37:20,113 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 887 states. [2025-03-19 22:37:20,114 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2025-03-19 22:37:21,310 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:21,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 894 states. [2025-03-19 22:37:21,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:37:21,311 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-19 22:37:21,311 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-19 22:37:21,311 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:37:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2115243444, now seen corresponding path program 9 times [2025-03-19 22:37:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:37:21,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888911705] [2025-03-19 22:37:21,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 22:37:21,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:37:21,325 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 378 statements into 19 equivalence classes. [2025-03-19 22:37:40,762 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 378 of 378 statements. [2025-03-19 22:37:40,762 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-03-19 22:37:40,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:38:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 51 proven. 2335 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-19 22:38:46,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:38:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888911705] [2025-03-19 22:38:46,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888911705] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 22:38:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746756598] [2025-03-19 22:38:46,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 22:38:46,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:38:46,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:38:46,959 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:38:46,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 22:38:47,017 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 378 statements into 19 equivalence classes. [2025-03-19 22:38:47,681 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 378 of 378 statements. [2025-03-19 22:38:47,681 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-03-19 22:38:47,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:38:47,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 196 conjuncts are in the unsatisfiable core [2025-03-19 22:38:47,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:41:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 98 proven. 2300 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-19 22:41:06,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:46:48,781 WARN L286 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 532 DAG size of output: 525 (called from [L 386] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-19 22:47:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:47:15,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746756598] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:47:15,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 22:47:15,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [211, 151, 169] total 524 [2025-03-19 22:47:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576093007] [2025-03-19 22:47:15,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 22:47:15,507 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 525 states [2025-03-19 22:47:15,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:47:15,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 525 interpolants. [2025-03-19 22:47:15,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39154, Invalid=235945, Unknown=1, NotChecked=0, Total=275100 [2025-03-19 22:47:15,527 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:47:15,527 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:47:15,528 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 525 states, 525 states have (on average 2.078095238095238) internal successors, (1091), 524 states have internal predecessors, (1091), 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) [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 894 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:47:15,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:47:37,128 WARN L286 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 252 DAG size of output: 169 (called from [L 386] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-19 22:47:38,392 WARN L538 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15