./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 06:22:22,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 06:22:22,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 06:22:22,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 06:22:22,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 06:22:22,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 06:22:22,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 06:22:22,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 06:22:22,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 06:22:22,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 06:22:22,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 06:22:22,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 06:22:22,172 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 06:22:22,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 06:22:22,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 06:22:22,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 06:22:22,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 06:22:22,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 06:22:22,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 06:22:22,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 06:22:22,175 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 06:22:22,175 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 06:22:22,175 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-jdk21/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 [2025-01-23 06:22:22,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 06:22:22,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 06:22:22,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 06:22:22,458 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 06:22:22,458 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 06:22:22,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2025-01-23 06:22:23,589 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd23673cf/2526da32f149403c8a37774b6c8b9c1e/FLAG201455ece [2025-01-23 06:22:23,781 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 06:22:23,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2025-01-23 06:22:23,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd23673cf/2526da32f149403c8a37774b6c8b9c1e/FLAG201455ece [2025-01-23 06:22:24,174 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd23673cf/2526da32f149403c8a37774b6c8b9c1e [2025-01-23 06:22:24,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 06:22:24,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 06:22:24,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 06:22:24,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 06:22:24,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 06:22:24,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c767a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24, skipping insertion in model container [2025-01-23 06:22:24,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 06:22:24,289 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2025-01-23 06:22:24,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 06:22:24,298 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 06:22:24,355 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2025-01-23 06:22:24,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 06:22:24,367 INFO L204 MainTranslator]: Completed translation [2025-01-23 06:22:24,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24 WrapperNode [2025-01-23 06:22:24,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 06:22:24,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 06:22:24,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 06:22:24,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 06:22:24,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,392 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2025-01-23 06:22:24,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 06:22:24,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 06:22:24,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 06:22:24,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 06:22:24,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,409 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 06:22:24,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 06:22:24,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 06:22:24,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 06:22:24,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (1/1) ... [2025-01-23 06:22:24,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 06:22:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 06:22:24,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 06:22:24,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 06:22:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 06:22:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 06:22:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 06:22:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-23 06:22:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 06:22:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 06:22:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 06:22:24,474 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 06:22:24,546 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 06:22:24,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 06:22:24,710 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 06:22:24,710 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 06:22:24,827 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 06:22:24,827 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 06:22:24,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:22:24 BoogieIcfgContainer [2025-01-23 06:22:24,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 06:22:24,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 06:22:24,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 06:22:24,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 06:22:24,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 06:22:24" (1/3) ... [2025-01-23 06:22:24,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5963a88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:22:24, skipping insertion in model container [2025-01-23 06:22:24,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:22:24" (2/3) ... [2025-01-23 06:22:24,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5963a88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:22:24, skipping insertion in model container [2025-01-23 06:22:24,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:22:24" (3/3) ... [2025-01-23 06:22:24,837 INFO L128 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2025-01-23 06:22:24,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 06:22:24,848 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-hard1.wvr.c that has 5 procedures, 41 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-23 06:22:24,848 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 06:22:24,890 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-23 06:22:24,932 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 06:22:24,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 06:22:24,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 06:22:24,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 06:22:24,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 06:22:24,989 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 06:22:24,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 06:22:25,001 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;@3362b160, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 06:22:25,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-01-23 06:22:26,054 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)] === [2025-01-23 06:22:26,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:26,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2098006241, now seen corresponding path program 1 times [2025-01-23 06:22:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191079086] [2025-01-23 06:22:26,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 06:22:26,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:26,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-23 06:22:26,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-23 06:22:26,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 06:22:26,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 06:22:26,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191079086] [2025-01-23 06:22:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191079086] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:22:26,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:22:26,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 06:22:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426944738] [2025-01-23 06:22:26,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:22:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 06:22:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:26,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 06:22:26,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-23 06:22:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:26,770 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:26,771 INFO L472 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) [2025-01-23 06:22:26,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:26,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:26,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 06:22:26,950 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)] === [2025-01-23 06:22:26,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:26,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1275859472, now seen corresponding path program 2 times [2025-01-23 06:22:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:26,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705374872] [2025-01-23 06:22:26,951 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 06:22:26,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:26,961 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-01-23 06:22:27,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 72 of 102 statements. [2025-01-23 06:22:27,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 06:22:27,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-23 06:22:27,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:27,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705374872] [2025-01-23 06:22:27,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705374872] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:22:27,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:22:27,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 06:22:27,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432471388] [2025-01-23 06:22:27,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:22:27,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 06:22:27,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:27,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 06:22:27,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-23 06:22:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:27,299 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:27,299 INFO L472 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) [2025-01-23 06:22:27,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:27,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 06:22:27,465 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)] === [2025-01-23 06:22:27,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash 476392406, now seen corresponding path program 3 times [2025-01-23 06:22:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121905380] [2025-01-23 06:22:27,466 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 06:22:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:27,477 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 108 statements into 2 equivalence classes. [2025-01-23 06:22:27,546 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-01-23 06:22:27,546 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-23 06:22:27,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-23 06:22:28,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:28,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121905380] [2025-01-23 06:22:28,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121905380] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:22:28,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:22:28,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 06:22:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637071249] [2025-01-23 06:22:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:22:28,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 06:22:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:28,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 06:22:28,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-23 06:22:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:28,018 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:28,018 INFO L472 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) [2025-01-23 06:22:28,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:28,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 06:22:28,181 INFO L396 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)] === [2025-01-23 06:22:28,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -210532995, now seen corresponding path program 4 times [2025-01-23 06:22:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216487100] [2025-01-23 06:22:28,182 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 06:22:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:28,206 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-01-23 06:22:28,279 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-01-23 06:22:28,280 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 06:22:28,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-23 06:22:28,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:28,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216487100] [2025-01-23 06:22:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216487100] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:22:28,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:22:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 06:22:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957559230] [2025-01-23 06:22:28,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:22:28,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 06:22:28,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:28,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 06:22:28,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-23 06:22:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:28,626 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:28,626 INFO L472 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) [2025-01-23 06:22:28,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:28,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:28,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:28,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 06:22:28,764 INFO L396 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)] === [2025-01-23 06:22:28,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash -837065710, now seen corresponding path program 5 times [2025-01-23 06:22:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:28,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904779910] [2025-01-23 06:22:28,766 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 06:22:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:28,776 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 3 equivalence classes. [2025-01-23 06:22:28,865 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 108 of 108 statements. [2025-01-23 06:22:28,865 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 06:22:28,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 31 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-23 06:22:31,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:31,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904779910] [2025-01-23 06:22:31,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904779910] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 06:22:31,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742164912] [2025-01-23 06:22:31,883 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 06:22:31,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 06:22:31,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 06:22:31,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 06:22:31,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 06:22:31,930 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 3 equivalence classes. [2025-01-23 06:22:32,060 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 108 of 108 statements. [2025-01-23 06:22:32,060 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 06:22:32,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:32,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-01-23 06:22:32,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 06:22:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 06:22:37,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 06:22:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 06:22:38,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742164912] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 06:22:38,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 06:22:38,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 28, 35] total 92 [2025-01-23 06:22:38,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433999441] [2025-01-23 06:22:38,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 06:22:38,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2025-01-23 06:22:38,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:38,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2025-01-23 06:22:38,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1796, Invalid=6760, Unknown=0, NotChecked=0, Total=8556 [2025-01-23 06:22:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:38,410 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:38,411 INFO L472 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) [2025-01-23 06:22:38,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:38,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:38,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:38,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:38,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2025-01-23 06:22:49,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 06:22:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 06:22:50,019 INFO L396 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)] === [2025-01-23 06:22:50,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1182296672, now seen corresponding path program 6 times [2025-01-23 06:22:50,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:50,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105760076] [2025-01-23 06:22:50,020 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 06:22:50,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:50,033 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 246 statements into 9 equivalence classes. [2025-01-23 06:22:50,054 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 66 of 246 statements. [2025-01-23 06:22:50,054 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-23 06:22:50,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2025-01-23 06:22:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105760076] [2025-01-23 06:22:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105760076] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:22:50,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:22:50,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 06:22:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031276497] [2025-01-23 06:22:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:22:50,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 06:22:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:22:50,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 06:22:50,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-23 06:22:50,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:50,193 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:22:50,194 INFO L472 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) [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2025-01-23 06:22:50,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:22:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:22:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2025-01-23 06:22:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:22:50,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-23 06:22:50,371 INFO L396 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)] === [2025-01-23 06:22:50,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:22:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash 306123030, now seen corresponding path program 7 times [2025-01-23 06:22:50,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:22:50,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969577736] [2025-01-23 06:22:50,372 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 06:22:50,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:22:50,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-01-23 06:22:50,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-01-23 06:22:50,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 06:22:50,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 137 proven. 358 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-23 06:22:58,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:22:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969577736] [2025-01-23 06:22:58,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969577736] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 06:22:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113423580] [2025-01-23 06:22:58,913 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 06:22:58,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 06:22:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 06:22:58,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 06:22:58,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 06:22:58,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-01-23 06:22:59,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-01-23 06:22:59,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 06:22:59,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:22:59,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 112 conjuncts are in the unsatisfiable core [2025-01-23 06:22:59,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 06:23:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 30 proven. 451 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-23 06:23:13,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 06:23:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 06:23:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113423580] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 06:23:20,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 06:23:20,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 67, 98] total 228 [2025-01-23 06:23:20,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264259400] [2025-01-23 06:23:20,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 06:23:20,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 229 states [2025-01-23 06:23:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:23:20,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 229 interpolants. [2025-01-23 06:23:20,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11109, Invalid=41103, Unknown=0, NotChecked=0, Total=52212 [2025-01-23 06:23:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:23:20,363 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:23:20,364 INFO L472 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) [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:23:20,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:24:59,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:24:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:24:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:24:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:24:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2025-01-23 06:24:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:24:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 648 states. [2025-01-23 06:24:59,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 06:24:59,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 06:24:59,830 INFO L396 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)] === [2025-01-23 06:24:59,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:24:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1262339861, now seen corresponding path program 8 times [2025-01-23 06:24:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:24:59,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673305839] [2025-01-23 06:24:59,831 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 06:24:59,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:24:59,846 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 441 statements into 2 equivalence classes. [2025-01-23 06:24:59,939 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 441 of 441 statements. [2025-01-23 06:24:59,939 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 06:24:59,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:25:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2672 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 2571 trivial. 0 not checked. [2025-01-23 06:25:00,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:25:00,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673305839] [2025-01-23 06:25:00,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673305839] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 06:25:00,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 06:25:00,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 06:25:00,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695582753] [2025-01-23 06:25:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 06:25:00,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 06:25:00,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:25:00,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 06:25:00,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-23 06:25:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:25:00,638 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:25:00,638 INFO L472 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) [2025-01-23 06:25:00,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:25:00,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:25:00,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:00,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:00,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2025-01-23 06:25:00,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:00,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 648 states. [2025-01-23 06:25:00,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 683 states. [2025-01-23 06:25:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:25:06,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-23 06:25:06,563 INFO L396 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)] === [2025-01-23 06:25:06,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 06:25:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2115243444, now seen corresponding path program 9 times [2025-01-23 06:25:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 06:25:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491670444] [2025-01-23 06:25:06,563 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 06:25:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 06:25:06,577 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 378 statements into 19 equivalence classes. [2025-01-23 06:25:25,334 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 378 of 378 statements. [2025-01-23 06:25:25,334 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 06:25:25,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:26:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 51 proven. 2335 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-23 06:26:31,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 06:26:31,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491670444] [2025-01-23 06:26:31,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491670444] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 06:26:31,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179407994] [2025-01-23 06:26:31,909 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 06:26:31,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 06:26:31,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 06:26:31,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 06:26:31,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 06:26:31,962 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 378 statements into 19 equivalence classes. [2025-01-23 06:26:32,614 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 378 of 378 statements. [2025-01-23 06:26:32,614 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-01-23 06:26:32,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 06:26:32,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 196 conjuncts are in the unsatisfiable core [2025-01-23 06:26:32,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 06:28:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 98 proven. 2300 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-23 06:28:43,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 06:35:44,399 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 532 DAG size of output: 525 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-23 06:36:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 06:36:15,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179407994] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 06:36:15,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 06:36:15,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [211, 151, 169] total 524 [2025-01-23 06:36:15,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875048565] [2025-01-23 06:36:15,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 06:36:15,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 525 states [2025-01-23 06:36:15,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 06:36:15,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 525 interpolants. [2025-01-23 06:36:15,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39154, Invalid=235945, Unknown=1, NotChecked=0, Total=275100 [2025-01-23 06:36:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 06:36:15,341 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 06:36:15,342 INFO L472 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) [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 683 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 06:36:15,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15