./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco --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 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:22:01,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:22:01,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:22:01,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:22:01,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:22:01,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:22:01,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:22:01,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:22:01,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:22:01,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:22:01,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:22:01,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:22:01,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:22:01,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:22:01,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:22:01,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:22:01,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:22:01,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:22:01,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:01,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:22:01,980 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:22:01,980 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco 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 -> 69f7b2e4777088b02df05d348ae0a210dcd9618a97428b10acd3ef63d9199610 [2024-11-27 06:22:02,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:22:02,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:22:02,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:22:02,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:22:02,329 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:22:02,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-11-27 06:22:05,383 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/data/21d58c8fe/5aed7c8aeedd4ca6882fe340ab965c8c/FLAGa99645ded [2024-11-27 06:22:05,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:22:05,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c [2024-11-27 06:22:05,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/data/21d58c8fe/5aed7c8aeedd4ca6882fe340ab965c8c/FLAGa99645ded [2024-11-27 06:22:05,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/data/21d58c8fe/5aed7c8aeedd4ca6882fe340ab965c8c [2024-11-27 06:22:05,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:22:05,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:22:05,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:05,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:22:05,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:22:05,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:05,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed794bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05, skipping insertion in model container [2024-11-27 06:22:05,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:05,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:22:05,897 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c[2950,2963] [2024-11-27 06:22:05,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:05,916 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:22:05,937 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/sv-benchmarks/c/weaver/popl20-more-inc-subseq.wvr.c[2950,2963] [2024-11-27 06:22:05,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:05,955 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:22:05,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05 WrapperNode [2024-11-27 06:22:05,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:05,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:05,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:22:05,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:22:05,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:05,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:05,994 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 183 [2024-11-27 06:22:05,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:05,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:22:05,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:22:05,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:22:06,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,012 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:22:06,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:22:06,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:22:06,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:22:06,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (1/1) ... [2024-11-27 06:22:06,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:06,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:06,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:06,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:22:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:22:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:22:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:22:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:22:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:22:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:22:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:22:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:22:06,095 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:22:06,215 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:22:06,216 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:22:06,573 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:22:06,573 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:22:06,927 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:22:06,927 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 06:22:06,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:06 BoogieIcfgContainer [2024-11-27 06:22:06,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:22:06,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:22:06,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:22:06,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:22:06,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:22:05" (1/3) ... [2024-11-27 06:22:06,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad908c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:06, skipping insertion in model container [2024-11-27 06:22:06,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:05" (2/3) ... [2024-11-27 06:22:06,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad908c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:06, skipping insertion in model container [2024-11-27 06:22:06,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:06" (3/3) ... [2024-11-27 06:22:06,941 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2024-11-27 06:22:06,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:22:06,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-inc-subseq.wvr.c that has 3 procedures, 27 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-27 06:22:06,961 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:22:07,029 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 06:22:07,096 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:07,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:22:07,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:07,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:07,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:22:07,189 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:22:07,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:22:07,220 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;@4294412f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:07,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-27 06:22:07,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:07,875 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:07,875 INFO L139 ounterexampleChecker]: Examining path program with hash -324762246, occurence #1 [2024-11-27 06:22:07,875 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:07,875 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:07,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1334549121, now seen corresponding path program 1 times [2024-11-27 06:22:07,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:07,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555354734] [2024-11-27 06:22:07,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:22:08,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555354734] [2024-11-27 06:22:08,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555354734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:08,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:22:08,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128356209] [2024-11-27 06:22:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:08,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:22:08,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:08,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:08,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:08,445 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:08,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:08,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:08,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:22:08,577 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:08,577 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:08,577 INFO L139 ounterexampleChecker]: Examining path program with hash -324762246, occurence #2 [2024-11-27 06:22:08,578 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:08,578 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:08,578 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,578 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-27 06:22:08,579 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,579 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:22:08,604 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:08,605 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:22:08,605 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,605 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-27 06:22:08,605 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,605 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:08,605 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:08,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1289558406, now seen corresponding path program 1 times [2024-11-27 06:22:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466281858] [2024-11-27 06:22:08,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:08,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:08,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466281858] [2024-11-27 06:22:08,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466281858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:08,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:08,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:22:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650407734] [2024-11-27 06:22:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:08,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:22:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:08,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:22:08,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:22:08,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:08,897 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:08,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:08,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:08,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:08,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:08,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:08,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 06:22:08,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:08,985 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:08,985 INFO L139 ounterexampleChecker]: Examining path program with hash -324762246, occurence #3 [2024-11-27 06:22:08,985 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:08,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:08,985 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-27 06:22:08,985 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,986 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:22:08,986 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,987 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:22:08,987 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,987 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-27 06:22:08,987 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:08,987 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:08,988 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:08,988 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:08,988 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:08,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:08,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1436711477, now seen corresponding path program 1 times [2024-11-27 06:22:08,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:08,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127847635] [2024-11-27 06:22:08,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:08,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:09,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:09,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127847635] [2024-11-27 06:22:09,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127847635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:09,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:09,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:22:09,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002314907] [2024-11-27 06:22:09,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:09,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:22:09,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:09,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 06:22:09,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 06:22:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:09,159 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:09,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:09,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 06:22:09,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:09,251 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:09,251 INFO L139 ounterexampleChecker]: Examining path program with hash 2077308289, occurence #1 [2024-11-27 06:22:09,251 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:09,251 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:09,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash -868714414, now seen corresponding path program 1 times [2024-11-27 06:22:09,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:09,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913217386] [2024-11-27 06:22:09,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:09,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:09,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913217386] [2024-11-27 06:22:09,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913217386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:09,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801800200] [2024-11-27 06:22:09,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:09,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:09,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:09,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:22:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:09,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:09,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:09,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 06:22:10,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801800200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:10,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:10,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-27 06:22:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988380127] [2024-11-27 06:22:10,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:10,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 06:22:10,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:10,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 06:22:10,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-27 06:22:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:10,147 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:10,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:10,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:10,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:10,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:10,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:10,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:22:10,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:10,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:10,723 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:10,723 INFO L139 ounterexampleChecker]: Examining path program with hash 2077308289, occurence #2 [2024-11-27 06:22:10,723 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:10,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:10,723 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:10,723 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-27 06:22:10,724 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:10,724 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:22:10,724 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-27 06:22:10,724 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:22:10,724 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:10,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:22:10,724 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:10,724 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:10,724 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:10,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:10,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1010498340, now seen corresponding path program 2 times [2024-11-27 06:22:10,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:10,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829125183] [2024-11-27 06:22:10,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:10,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:10,795 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:22:10,796 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:22:11,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829125183] [2024-11-27 06:22:11,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829125183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:11,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:11,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:22:11,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286442375] [2024-11-27 06:22:11,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:11,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:22:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:11,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:11,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:11,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:11,062 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:11,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:11,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:11,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:11,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:11,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:11,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:11,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 06:22:11,211 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:11,211 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:11,211 INFO L139 ounterexampleChecker]: Examining path program with hash 710517452, occurence #1 [2024-11-27 06:22:11,211 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:11,212 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:11,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:11,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2020202339, now seen corresponding path program 3 times [2024-11-27 06:22:11,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:11,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246686224] [2024-11-27 06:22:11,213 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:11,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:11,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:11,608 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:22:11,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:11,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246686224] [2024-11-27 06:22:11,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246686224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:11,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591196676] [2024-11-27 06:22:11,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:11,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:11,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:11,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:11,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:22:11,747 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:11,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:11,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:11,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:22:12,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 06:22:12,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591196676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:12,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:12,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2024-11-27 06:22:12,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883776469] [2024-11-27 06:22:12,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:12,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 06:22:12,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:12,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 06:22:12,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-11-27 06:22:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:12,241 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:12,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.809523809523809) internal successors, (101), 20 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:12,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:12,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:12,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:12,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:12,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:12,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:12,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 06:22:12,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 06:22:12,889 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:12,889 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:12,889 INFO L139 ounterexampleChecker]: Examining path program with hash 710517452, occurence #2 [2024-11-27 06:22:12,889 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:12,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:12,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:12,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:22:12,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:12,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-27 06:22:12,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:12,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-27 06:22:12,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:12,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:12,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:12,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:22:12,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:12,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:22:12,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 697772389, now seen corresponding path program 1 times [2024-11-27 06:22:12,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143023841] [2024-11-27 06:22:12,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-27 06:22:13,098 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:13,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143023841] [2024-11-27 06:22:13,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143023841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:13,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:13,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 06:22:13,100 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 33. Constructing proof automaton... [2024-11-27 06:22:13,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:13,101 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:22:13,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 06:22:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-27 06:22:13,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:13,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:13,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:13,103 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:13,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:13,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:13,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 06:22:13,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:13,350 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:13,351 INFO L139 ounterexampleChecker]: Examining path program with hash 369679010, occurence #1 [2024-11-27 06:22:13,351 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:13,351 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:13,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash -775763666, now seen corresponding path program 4 times [2024-11-27 06:22:13,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:13,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661417094] [2024-11-27 06:22:13,352 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:13,400 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:13,400 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 06:22:13,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:13,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661417094] [2024-11-27 06:22:13,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661417094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:13,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:13,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 06:22:13,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421546383] [2024-11-27 06:22:13,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:13,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:22:13,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:13,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 06:22:13,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 06:22:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:13,610 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:13,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:13,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 06:22:13,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:13,871 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:13,871 INFO L139 ounterexampleChecker]: Examining path program with hash 1992685097, occurence #1 [2024-11-27 06:22:13,872 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:13,872 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:13,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2146750065, now seen corresponding path program 5 times [2024-11-27 06:22:13,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:13,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566893700] [2024-11-27 06:22:13,872 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:22:13,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:13,912 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-27 06:22:13,912 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 06:22:14,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566893700] [2024-11-27 06:22:14,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566893700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:14,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873878260] [2024-11-27 06:22:14,214 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:22:14,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:14,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:14,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:22:14,370 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-27 06:22:14,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:14,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 06:22:14,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:22:14,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:22:15,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873878260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:15,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:15,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2024-11-27 06:22:15,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494176121] [2024-11-27 06:22:15,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:15,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-27 06:22:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:15,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-27 06:22:15,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2024-11-27 06:22:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:15,455 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:15,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.344827586206897) internal successors, (126), 28 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:15,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:22:16,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 06:22:16,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 06:22:16,383 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:16,383 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:16,384 INFO L139 ounterexampleChecker]: Examining path program with hash 1992685097, occurence #2 [2024-11-27 06:22:16,384 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:16,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:22:16,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:22:16,384 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:22:16,384 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:22:16,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-27 06:22:16,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash 941210011, now seen corresponding path program 1 times [2024-11-27 06:22:16,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:16,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715795264] [2024-11-27 06:22:16,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:22:16,684 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715795264] [2024-11-27 06:22:16,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715795264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1080334] [2024-11-27 06:22:16,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:16,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:16,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:22:16,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 06:22:16,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1080334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:16,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:16,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13 [2024-11-27 06:22:16,944 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:16,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-27 06:22:16,944 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-11-27 06:22:16,944 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,945 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-27 06:22:16,945 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,945 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-27 06:22:16,945 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:16,945 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-27 06:22:16,945 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:16,945 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:16,945 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:16,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:16,946 INFO L85 PathProgramCache]: Analyzing trace with hash 818000409, now seen corresponding path program 6 times [2024-11-27 06:22:16,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:16,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428039446] [2024-11-27 06:22:16,946 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:22:16,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:17,005 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-27 06:22:17,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:22:17,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428039446] [2024-11-27 06:22:17,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428039446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732303150] [2024-11-27 06:22:17,209 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 06:22:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:17,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:17,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:22:17,343 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-27 06:22:17,344 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:17,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:17,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:17,431 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 06:22:17,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 06:22:17,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732303150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:17,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:17,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 8 [2024-11-27 06:22:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832611310] [2024-11-27 06:22:17,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:17,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 06:22:17,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:17,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 06:22:17,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 06:22:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:17,487 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:17,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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) [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:22:17,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:22:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:17,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 06:22:17,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2024-11-27 06:22:17,933 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:17,934 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:17,934 INFO L139 ounterexampleChecker]: Examining path program with hash -1093423181, occurence #1 [2024-11-27 06:22:17,934 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:17,934 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:17,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1568830554, now seen corresponding path program 7 times [2024-11-27 06:22:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:17,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611964445] [2024-11-27 06:22:17,934 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:22:17,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:22:18,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:18,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611964445] [2024-11-27 06:22:18,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611964445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:18,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613815338] [2024-11-27 06:22:18,156 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 06:22:18,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:18,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:18,158 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:18,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:22:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:18,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:18,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:22:18,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:22:18,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613815338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:18,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:18,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-27 06:22:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249080885] [2024-11-27 06:22:18,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:18,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 06:22:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:18,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 06:22:18,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2024-11-27 06:22:18,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:18,674 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:18,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 22 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 06:22:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 06:22:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 06:22:18,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:18,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:19,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:22:19,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 06:22:19,201 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-27 06:22:19,201 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:19,201 INFO L139 ounterexampleChecker]: Examining path program with hash -1093423181, occurence #2 [2024-11-27 06:22:19,201 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:19,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:19,201 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-27 06:22:19,201 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-27 06:22:19,202 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:19,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:22:19,202 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:19,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-27 06:22:19,202 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:22:19,202 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,202 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:22:19,202 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,203 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-27 06:22:19,203 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:19,203 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-27 06:22:19,203 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:19,203 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:19,203 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:19,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:19,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1286642783, now seen corresponding path program 8 times [2024-11-27 06:22:19,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:19,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432779381] [2024-11-27 06:22:19,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:19,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:19,305 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:22:19,305 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 5 proven. 63 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 06:22:25,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:25,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432779381] [2024-11-27 06:22:25,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432779381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:25,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813577652] [2024-11-27 06:22:25,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:25,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:25,445 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:25,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb66572b-5597-46d5-af5e-d672a6232ab8/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:22:25,595 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:22:25,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:25,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-27 06:22:25,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:30,106 INFO L349 Elim1Store]: treesize reduction 74, result has 78.7 percent of original size [2024-11-27 06:22:30,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 300 [2024-11-27 06:22:30,324 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:30,528 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:30,754 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:30,961 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:31,266 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:31,346 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:32,080 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:32,217 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:32,463 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:32,643 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 06:22:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 06:22:33,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:25:52,770 WARN L286 SmtUtils]: Spent 3.14m on a formula simplification that was a NOOP. DAG size: 3669 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-27 06:25:52,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 06:25:52,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 44 select indices, 44 select index equivalence classes, 0 disjoint index pairs (out of 946 index pairs), introduced 44 new quantified variables, introduced 946 case distinctions, treesize of input 801 treesize of output 14908 [2024-11-27 06:25:58,063 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 3707 DAG size of output: 3706 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)