./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca --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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:29:20,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:29:20,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:29:20,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:29:20,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:29:20,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:29:20,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:29:20,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:29:20,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:29:20,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:29:20,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:29:20,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:29:20,518 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:29:20,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:29:20,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:29:20,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:29:20,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:29:20,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:29:20,521 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:29:20,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:29:20,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:29:20,522 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:29:20,522 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:29:20,522 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:29:20,522 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca 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 -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-23 11:29:20,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:29:20,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:29:20,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:29:20,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:29:20,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:29:20,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-23 11:29:23,924 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/a82982d1f/9c20433a1dc24bdda4f02196890ec27a/FLAGb9d8387e1 [2024-11-23 11:29:24,242 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:29:24,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-23 11:29:24,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/a82982d1f/9c20433a1dc24bdda4f02196890ec27a/FLAGb9d8387e1 [2024-11-23 11:29:24,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/a82982d1f/9c20433a1dc24bdda4f02196890ec27a [2024-11-23 11:29:24,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:29:24,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:29:24,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:29:24,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:29:24,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:29:24,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744b2308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24, skipping insertion in model container [2024-11-23 11:29:24,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:29:24,742 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-23 11:29:24,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:29:24,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:29:24,794 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-23 11:29:24,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:29:24,821 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:29:24,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24 WrapperNode [2024-11-23 11:29:24,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:29:24,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:29:24,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:29:24,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:29:24,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,856 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 135 [2024-11-23 11:29:24,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:29:24,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:29:24,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:29:24,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:29:24,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,874 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:29:24,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:29:24,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:29:24,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:29:24,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (1/1) ... [2024-11-23 11:29:24,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:29:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:24,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:29:24,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:29:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:29:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:29:24,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:29:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:29:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:29:24,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:29:24,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:29:24,950 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:29:25,074 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:29:25,077 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:29:25,549 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:29:25,550 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:29:25,938 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:29:25,941 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 11:29:25,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:29:25 BoogieIcfgContainer [2024-11-23 11:29:25,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:29:25,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:29:25,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:29:25,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:29:25,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:29:24" (1/3) ... [2024-11-23 11:29:25,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd266f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:29:25, skipping insertion in model container [2024-11-23 11:29:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:24" (2/3) ... [2024-11-23 11:29:25,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd266f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:29:25, skipping insertion in model container [2024-11-23 11:29:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:29:25" (3/3) ... [2024-11-23 11:29:25,954 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-23 11:29:25,970 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:29:25,972 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-23 11:29:25,972 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:29:26,048 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 11:29:26,121 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:29:26,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:29:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:26,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:29:26,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:29:26,207 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:29:26,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:29:26,240 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;@2389fbd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:29:26,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 11:29:26,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:26,919 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:26,920 INFO L139 ounterexampleChecker]: Examining path program with hash 727036625, occurence #1 [2024-11-23 11:29:26,920 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:29:26,920 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:26,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1268752147, now seen corresponding path program 1 times [2024-11-23 11:29:26,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:26,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148226226] [2024-11-23 11:29:26,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:26,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:29:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:27,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148226226] [2024-11-23 11:29:27,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148226226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:29:27,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:29:27,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 11:29:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193183803] [2024-11-23 11:29:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:29:27,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:29:27,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:27,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:29:27,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:29:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:27,828 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:27,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-11-23 11:29:27,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:27,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:29:28,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:28,000 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:28,000 INFO L139 ounterexampleChecker]: Examining path program with hash 727036625, occurence #2 [2024-11-23 11:29:28,000 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:29:28,001 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:29:28,001 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:28,001 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:29:28,001 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:28,002 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:29:28,025 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:28,026 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:29:28,026 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:28,026 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:29:28,027 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:28,027 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:29:28,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:28,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1059493995, now seen corresponding path program 1 times [2024-11-23 11:29:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:29:28,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080514231] [2024-11-23 11:29:28,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:28,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:29:28,463 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:29:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080514231] [2024-11-23 11:29:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080514231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1718857910] [2024-11-23 11:29:28,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:28,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:28,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:29:28,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:29:28,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1718857910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:28,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:29:28,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:29:28,790 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:29:28,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:29:28,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:28,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:29:28,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:28,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:29:28,791 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:28,791 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:29:28,791 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:28,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash -529365971, now seen corresponding path program 1 times [2024-11-23 11:29:28,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:28,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601686381] [2024-11-23 11:29:28,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:28,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:29,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:29:29,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:29,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601686381] [2024-11-23 11:29:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601686381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:29,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896978943] [2024-11-23 11:29:29,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:29,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:29,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:29,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:29:29,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:29:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:29,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:29:29,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:29:29,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:29:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:29:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896978943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:29:29,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:29:29,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-23 11:29:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799472462] [2024-11-23 11:29:29,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:29:29,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 11:29:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:29,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 11:29:29,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-23 11:29:29,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:29,734 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:29,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 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) [2024-11-23 11:29:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:30,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:30,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:30,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 11:29:30,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:30,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:30,207 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:30,207 INFO L139 ounterexampleChecker]: Examining path program with hash 727036625, occurence #3 [2024-11-23 11:29:30,207 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:29:30,207 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:29:30,207 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:30,207 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:29:30,207 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:30,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:29:30,208 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:30,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:29:30,208 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:30,208 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:29:30,208 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:30,212 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-23 11:29:30,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:30,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1293359656, now seen corresponding path program 1 times [2024-11-23 11:29:30,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:29:30,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067155893] [2024-11-23 11:29:30,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:30,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:29:30,571 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:29:30,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067155893] [2024-11-23 11:29:30,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067155893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:30,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2088110826] [2024-11-23 11:29:30,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:30,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:30,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:29:30,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:29:30,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2088110826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:30,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:29:30,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-23 11:29:30,801 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:29:30,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-23 11:29:30,802 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:30,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-23 11:29:30,802 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:30,802 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-23 11:29:30,802 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:30,803 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:29:30,803 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:30,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1707244947, now seen corresponding path program 2 times [2024-11-23 11:29:30,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:30,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650532606] [2024-11-23 11:29:30,805 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:29:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:30,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:29:30,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 11:29:31,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:31,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650532606] [2024-11-23 11:29:31,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650532606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:29:31,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:29:31,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 11:29:31,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022794181] [2024-11-23 11:29:31,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:29:31,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:29:31,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:31,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:29:31,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 11:29:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:31,076 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:31,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:29:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:31,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:31,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-11-23 11:29:31,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:31,313 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:31,313 INFO L139 ounterexampleChecker]: Examining path program with hash 514654478, occurence #1 [2024-11-23 11:29:31,313 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:29:31,314 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:31,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:31,314 INFO L85 PathProgramCache]: Analyzing trace with hash -876326641, now seen corresponding path program 3 times [2024-11-23 11:29:31,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:31,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380795524] [2024-11-23 11:29:31,314 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:29:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:31,423 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:29:31,425 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:29:31,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:31,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380795524] [2024-11-23 11:29:31,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380795524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:29:31,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:29:31,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 11:29:31,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109546464] [2024-11-23 11:29:31,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:29:31,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 11:29:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:31,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 11:29:31,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 11:29:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:31,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:31,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2024-11-23 11:29:31,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:31,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:31,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:31,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:32,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 11:29:32,353 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:32,353 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:32,354 INFO L139 ounterexampleChecker]: Examining path program with hash -1921675310, occurence #1 [2024-11-23 11:29:32,354 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:29:32,354 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:32,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:32,355 INFO L85 PathProgramCache]: Analyzing trace with hash -327784420, now seen corresponding path program 1 times [2024-11-23 11:29:32,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:32,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978446716] [2024-11-23 11:29:32,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:29:32,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:32,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978446716] [2024-11-23 11:29:32,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978446716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:32,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606912763] [2024-11-23 11:29:32,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:29:32,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:32,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:29:32,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:29:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:29:32,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:29:32,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:29:33,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:29:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:29:33,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606912763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:29:33,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:29:33,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-23 11:29:33,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163672101] [2024-11-23 11:29:33,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:29:33,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 11:29:33,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:33,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 11:29:33,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-23 11:29:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:33,275 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:33,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:29:33,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:33,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:33,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:33,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:33,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:33,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 11:29:33,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:33,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:33,692 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:33,693 INFO L139 ounterexampleChecker]: Examining path program with hash -1921675310, occurence #2 [2024-11-23 11:29:33,693 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:29:33,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:29:33,693 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:29:33,693 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:29:33,693 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:33,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:29:33,693 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:29:33,694 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:29:33,694 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:29:33,694 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-23 11:29:33,694 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-11-23 11:29:33,694 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:33,694 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-11-23 11:29:33,694 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:33,694 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:29:33,694 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:33,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:33,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1272729636, now seen corresponding path program 2 times [2024-11-23 11:29:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:33,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056014891] [2024-11-23 11:29:33,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:29:33,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:33,735 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:29:33,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:29:34,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:34,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056014891] [2024-11-23 11:29:34,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056014891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:34,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235500421] [2024-11-23 11:29:34,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:29:34,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:34,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:34,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:29:34,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:29:34,212 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:29:34,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:34,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:29:34,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:29:34,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:29:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:29:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235500421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:29:34,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:29:34,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-11-23 11:29:34,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061454015] [2024-11-23 11:29:34,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:29:34,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 11:29:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:34,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 11:29:34,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-23 11:29:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:34,675 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:34,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.15) internal successors, (103), 19 states have internal predecessors, (103), 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) [2024-11-23 11:29:34,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:34,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:34,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:34,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:35,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:29:35,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 11:29:35,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:35,365 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:35,365 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:35,366 INFO L139 ounterexampleChecker]: Examining path program with hash -1921675310, occurence #3 [2024-11-23 11:29:35,366 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:29:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:29:35,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:29:35,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:29:35,366 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:35,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:29:35,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:29:35,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:29:35,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:29:35,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-23 11:29:35,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-23 11:29:35,367 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-23 11:29:35,368 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:29:35,368 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-11-23 11:29:35,368 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:29:35,368 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:29:35,368 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:35,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1230799083, now seen corresponding path program 3 times [2024-11-23 11:29:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602193714] [2024-11-23 11:29:35,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:29:35,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:35,431 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:29:35,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 11:29:35,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:35,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602193714] [2024-11-23 11:29:35,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602193714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:29:35,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:29:35,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:29:35,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903076] [2024-11-23 11:29:35,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:29:35,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:29:35,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:35,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:29:35,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:29:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:35,771 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:35,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:29:35,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:29:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 11:29:36,080 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:36,080 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:36,080 INFO L139 ounterexampleChecker]: Examining path program with hash -2069894939, occurence #1 [2024-11-23 11:29:36,080 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:29:36,080 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:36,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:36,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1875098617, now seen corresponding path program 4 times [2024-11-23 11:29:36,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:36,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62649223] [2024-11-23 11:29:36,081 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:29:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:36,123 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:29:36,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 11:29:36,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:36,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62649223] [2024-11-23 11:29:36,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62649223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:29:36,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:29:36,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 11:29:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217800465] [2024-11-23 11:29:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:29:36,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:29:36,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:29:36,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:29:36,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 11:29:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:36,345 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:29:36,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-23 11:29:36,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:36,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:36,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:29:36,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:29:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:29:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:29:36,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 11:29:36,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:29:36,610 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:29:36,611 INFO L139 ounterexampleChecker]: Examining path program with hash -627406961, occurence #1 [2024-11-23 11:29:36,611 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:29:36,611 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:29:36,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:29:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1946888906, now seen corresponding path program 4 times [2024-11-23 11:29:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:29:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442123248] [2024-11-23 11:29:36,611 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:29:36,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:29:36,752 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:29:36,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:29:39,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:29:39,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442123248] [2024-11-23 11:29:39,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442123248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:29:39,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19948164] [2024-11-23 11:29:39,498 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:29:39,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:29:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:29:39,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:29:39,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:29:39,877 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:29:39,877 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:29:39,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-23 11:29:39,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:29:40,845 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-11-23 11:29:40,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2024-11-23 11:29:42,443 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-11-23 11:29:42,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 121 treesize of output 144 [2024-11-23 11:29:46,766 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-11-23 11:29:46,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 53 case distinctions, treesize of input 304 treesize of output 310 [2024-11-23 11:32:21,163 WARN L286 SmtUtils]: Spent 2.41m on a formula simplification. DAG size of input: 2561 DAG size of output: 2165 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-23 11:32:21,165 INFO L349 Elim1Store]: treesize reduction 2508, result has 71.1 percent of original size [2024-11-23 11:32:21,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 73 select indices, 73 select index equivalence classes, 6 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 2628 case distinctions, treesize of input 1387 treesize of output 6787 [2024-11-23 11:40:15,343 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-23 11:40:15,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-23 11:40:15,345 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-23 11:40:15,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 11:40:15,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 11:40:15,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-23 11:40:15,559 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-11-23 11:40:15,573 INFO L158 Benchmark]: Toolchain (without parser) took 651057.95ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 118.6MB in the beginning and 817.4MB in the end (delta: -698.8MB). Peak memory consumption was 802.3MB. Max. memory is 16.1GB. [2024-11-23 11:40:15,582 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 11:40:15,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.60ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 106.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 11:40:15,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 11:40:15,584 INFO L158 Benchmark]: Boogie Preprocessor took 28.31ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 11:40:15,584 INFO L158 Benchmark]: RCFGBuilder took 1055.28ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 112.5MB in the end (delta: -9.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-11-23 11:40:15,584 INFO L158 Benchmark]: TraceAbstraction took 649628.50ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 111.9MB in the beginning and 817.4MB in the end (delta: -705.5MB). Peak memory consumption was 796.4MB. Max. memory is 16.1GB. [2024-11-23 11:40:15,594 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.60ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 106.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.31ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1055.28ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 112.5MB in the end (delta: -9.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * TraceAbstraction took 649628.50ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 111.9MB in the beginning and 817.4MB in the end (delta: -705.5MB). Peak memory consumption was 796.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca --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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:40:18,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:40:18,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-23 11:40:18,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:40:18,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:40:18,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:40:18,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:40:18,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:40:18,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:40:18,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:40:18,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:40:18,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:40:18,843 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:40:18,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:40:18,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:40:18,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:40:18,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:40:18,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:40:18,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-23 11:40:18,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:40:18,846 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:40:18,846 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:40:18,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:40:18,847 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 11:40:18,848 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:40:18,848 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 11:40:18,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:40:18,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:40:18,848 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:40:18,849 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:40:18,849 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca 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 -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-23 11:40:19,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:40:19,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:40:19,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:40:19,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:40:19,264 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:40:19,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-23 11:40:22,793 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/be3ca7cad/c2e5f97d8c624fcab0d5685bf78fa4e8/FLAGb86e42e41 [2024-11-23 11:40:23,153 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:40:23,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-23 11:40:23,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/be3ca7cad/c2e5f97d8c624fcab0d5685bf78fa4e8/FLAGb86e42e41 [2024-11-23 11:40:23,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/data/be3ca7cad/c2e5f97d8c624fcab0d5685bf78fa4e8 [2024-11-23 11:40:23,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:40:23,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:40:23,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:40:23,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:40:23,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:40:23,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c19440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23, skipping insertion in model container [2024-11-23 11:40:23,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:40:23,650 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-23 11:40:23,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:40:23,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:40:23,702 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_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-23 11:40:23,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:40:23,729 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:40:23,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23 WrapperNode [2024-11-23 11:40:23,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:40:23,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:40:23,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:40:23,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:40:23,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,786 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 134 [2024-11-23 11:40:23,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:40:23,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:40:23,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:40:23,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:40:23,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,821 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:40:23,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:40:23,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:40:23,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:40:23,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (1/1) ... [2024-11-23 11:40:23,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:40:23,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:23,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:40:23,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:40:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:40:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-23 11:40:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-23 11:40:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:40:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:40:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:40:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:40:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:40:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:40:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:40:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:40:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:40:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:40:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:40:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-23 11:40:23,941 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:40:24,097 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:40:24,099 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:40:24,631 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:40:24,631 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:40:25,122 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:40:25,123 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 11:40:25,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:25 BoogieIcfgContainer [2024-11-23 11:40:25,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:40:25,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:40:25,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:40:25,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:40:25,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:40:23" (1/3) ... [2024-11-23 11:40:25,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4308b5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:25, skipping insertion in model container [2024-11-23 11:40:25,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:23" (2/3) ... [2024-11-23 11:40:25,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4308b5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:25, skipping insertion in model container [2024-11-23 11:40:25,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:25" (3/3) ... [2024-11-23 11:40:25,135 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-23 11:40:25,151 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:40:25,152 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-23 11:40:25,153 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:40:25,242 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 11:40:25,312 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:40:25,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:40:25,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:25,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:40:25,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:40:25,414 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:40:25,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:40:25,451 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;@2c1646d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:40:25,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 11:40:26,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:26,766 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:26,766 INFO L139 ounterexampleChecker]: Examining path program with hash 1384540497, occurence #1 [2024-11-23 11:40:26,767 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:26,767 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:26,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1998701587, now seen corresponding path program 1 times [2024-11-23 11:40:26,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:26,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421252094] [2024-11-23 11:40:26,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:26,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:26,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:26,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:26,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:40:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:26,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:40:26,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:40:27,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:40:27,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:27,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421252094] [2024-11-23 11:40:27,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421252094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:40:27,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:40:27,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 11:40:27,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853075766] [2024-11-23 11:40:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:40:27,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 11:40:27,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:27,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 11:40:27,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 11:40:27,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:27,455 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:27,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:40:27,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:28,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:40:28,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:28,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:28,507 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:28,507 INFO L139 ounterexampleChecker]: Examining path program with hash -2016963033, occurence #1 [2024-11-23 11:40:28,507 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:28,508 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:28,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash 151626150, now seen corresponding path program 2 times [2024-11-23 11:40:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:28,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673022461] [2024-11-23 11:40:28,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:40:28,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:28,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:28,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:28,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:40:28,750 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:40:28,750 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:40:28,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:40:28,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:40:29,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:40:29,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:29,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673022461] [2024-11-23 11:40:29,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673022461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:29,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:29,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-23 11:40:29,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407764973] [2024-11-23 11:40:29,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:40:29,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 11:40:29,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:29,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 11:40:29,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 11:40:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:29,350 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 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) [2024-11-23 11:40:29,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:29,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:29,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 11:40:30,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:30,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:30,128 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:30,128 INFO L139 ounterexampleChecker]: Examining path program with hash -2016963033, occurence #2 [2024-11-23 11:40:30,128 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:40:30,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:40:30,129 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:30,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:40:30,129 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:30,129 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:40:30,148 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:30,148 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:40:30,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:30,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:40:30,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:30,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-23 11:40:30,149 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:30,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-23 11:40:30,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:30,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1821083182, now seen corresponding path program 1 times [2024-11-23 11:40:30,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:30,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196625275] [2024-11-23 11:40:30,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:30,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:30,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:30,229 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:30,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:40:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:30,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:40:30,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 11:40:30,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:30,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-23 11:40:30,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-23 11:40:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-23 11:40:31,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:31,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196625275] [2024-11-23 11:40:31,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196625275] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:40:31,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:40:31,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-23 11:40:31,110 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 39. Constructing proof automaton... [2024-11-23 11:40:31,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:40:31,112 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-23 11:40:31,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:40:31,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:31,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:40:31,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 11:40:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:31,116 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:31,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-23 11:40:31,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:31,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:31,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:32,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 11:40:32,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:32,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:32,629 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:32,629 INFO L139 ounterexampleChecker]: Examining path program with hash -1826775700, occurence #1 [2024-11-23 11:40:32,629 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:32,629 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:32,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1789266023, now seen corresponding path program 1 times [2024-11-23 11:40:32,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:32,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735271498] [2024-11-23 11:40:32,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:32,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:32,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:32,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:32,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:40:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:32,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 11:40:32,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:40:33,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 11:40:34,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735271498] [2024-11-23 11:40:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735271498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:34,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:34,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-23 11:40:34,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930602117] [2024-11-23 11:40:34,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:40:34,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 11:40:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:34,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 11:40:34,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-23 11:40:34,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:34,013 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:34,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 17 states have internal predecessors, (96), 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) [2024-11-23 11:40:34,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:34,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:34,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:34,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:35,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:40:35,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:35,212 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:35,212 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:35,212 INFO L139 ounterexampleChecker]: Examining path program with hash -1826775700, occurence #2 [2024-11-23 11:40:35,212 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:40:35,212 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:40:35,213 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:35,213 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:40:35,213 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:35,213 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:40:35,213 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:35,213 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:40:35,213 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:35,213 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:40:35,213 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:35,213 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:40:35,213 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:35,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-23 11:40:35,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:35,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:40:35,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1730538461, now seen corresponding path program 1 times [2024-11-23 11:40:35,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:35,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727017112] [2024-11-23 11:40:35,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:35,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:35,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:35,334 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:35,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:40:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:35,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:40:35,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 11:40:36,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 11:40:40,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:40,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727017112] [2024-11-23 11:40:40,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727017112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:40,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:40,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2024-11-23 11:40:40,430 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:40:40,430 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-23 11:40:40,430 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:40,430 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-23 11:40:40,431 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:40,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-23 11:40:40,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:40,431 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:40:40,431 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:40,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:40,433 INFO L85 PathProgramCache]: Analyzing trace with hash 870803751, now seen corresponding path program 2 times [2024-11-23 11:40:40,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:40,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338044934] [2024-11-23 11:40:40,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:40:40,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:40,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:40,444 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:40,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:40:40,742 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:40:40,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:40:40,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:40:40,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:41,624 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 11:40:41,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 11:40:43,077 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:43,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338044934] [2024-11-23 11:40:43,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338044934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:43,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:43,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-23 11:40:43,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029537023] [2024-11-23 11:40:43,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:40:43,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-23 11:40:43,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:43,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-23 11:40:43,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-23 11:40:43,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:43,082 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:43,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 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) [2024-11-23 11:40:43,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:43,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:43,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:43,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:43,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:40:49,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:40:49,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 11:40:50,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:50,166 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:50,166 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:50,166 INFO L139 ounterexampleChecker]: Examining path program with hash 652250584, occurence #1 [2024-11-23 11:40:50,166 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:50,166 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:50,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:50,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1844055760, now seen corresponding path program 1 times [2024-11-23 11:40:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:50,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802189151] [2024-11-23 11:40:50,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:50,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:50,171 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:50,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:40:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:50,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 11:40:50,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-23 11:40:50,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:40:50,506 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802189151] [2024-11-23 11:40:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802189151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:40:50,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:40:50,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:40:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037924125] [2024-11-23 11:40:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:40:50,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:40:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:50,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:40:50,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:40:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:50,508 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:50,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:40:50,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:40:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:40:51,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 11:40:51,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:51,289 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:51,289 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:51,289 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #1 [2024-11-23 11:40:51,289 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:40:51,289 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:40:51,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash 494902199, now seen corresponding path program 2 times [2024-11-23 11:40:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386785166] [2024-11-23 11:40:51,290 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:40:51,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:51,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:51,294 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:51,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 11:40:51,582 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:40:51,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:40:51,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:40:51,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 16 proven. 139 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:40:52,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 16 proven. 139 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:40:53,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:53,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386785166] [2024-11-23 11:40:53,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386785166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:53,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:53,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-23 11:40:53,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108492113] [2024-11-23 11:40:53,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:40:53,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 11:40:53,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:40:53,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 11:40:53,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2024-11-23 11:40:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:53,700 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:40:53,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.384615384615385) internal successors, (166), 25 states have internal predecessors, (166), 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) [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:40:53,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:40:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:40:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:40:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:40:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:40:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:40:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:40:55,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 11:40:55,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:55,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:40:55,640 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:40:55,640 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #2 [2024-11-23 11:40:55,640 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:40:55,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:40:55,640 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,641 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:40:55,641 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,641 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:40:55,641 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:55,641 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:40:55,641 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:55,641 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:40:55,641 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:40:55,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-23 11:40:55,642 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-23 11:40:55,642 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-23 11:40:55,642 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-11-23 11:40:55,643 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,643 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-23 11:40:55,643 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:55,643 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-23 11:40:55,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash 693785506, now seen corresponding path program 1 times [2024-11-23 11:40:55,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:55,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184097105] [2024-11-23 11:40:55,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:55,717 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:55,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 11:40:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:56,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:40:56,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 11:40:57,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:40:57,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-23 11:40:57,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-23 11:40:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-23 11:40:57,735 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:40:57,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184097105] [2024-11-23 11:40:57,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184097105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:40:57,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:40:57,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6] total 23 [2024-11-23 11:40:57,736 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:40:57,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-23 11:40:57,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:57,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2024-11-23 11:40:57,736 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:40:57,736 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-23 11:40:57,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:40:57,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1131985532, now seen corresponding path program 1 times [2024-11-23 11:40:57,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:40:57,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680484677] [2024-11-23 11:40:57,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:40:57,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:40:57,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:40:57,825 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:40:57,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 11:40:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:40:58,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 11:40:58,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:40:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 36 proven. 133 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 11:40:59,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:41:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 36 proven. 133 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 11:41:00,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:41:00,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680484677] [2024-11-23 11:41:00,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680484677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:41:00,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:41:00,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-23 11:41:00,790 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:41:00,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2024-11-23 11:41:00,790 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:41:00,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-23 11:41:00,790 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:41:00,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2024-11-23 11:41:00,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:41:00,790 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:41:00,790 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:41:00,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:41:00,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1868780279, now seen corresponding path program 3 times [2024-11-23 11:41:00,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:41:00,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201981260] [2024-11-23 11:41:00,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:41:00,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:41:00,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:41:00,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:41:00,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 11:41:04,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 11:41:04,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:41:04,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-23 11:41:04,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:41:09,365 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 66 proven. 38 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-23 11:41:09,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:41:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 5 proven. 79 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-23 11:41:22,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:41:22,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201981260] [2024-11-23 11:41:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201981260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:41:22,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:41:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 57 [2024-11-23 11:41:22,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656655533] [2024-11-23 11:41:22,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:41:22,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-23 11:41:22,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:41:22,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-23 11:41:22,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=2701, Unknown=0, NotChecked=0, Total=3192 [2024-11-23 11:41:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:41:22,098 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:41:22,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.8771929824561404) internal successors, (164), 57 states have internal predecessors, (164), 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) [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:41:22,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:41:22,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:41:22,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:42:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:42:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:42:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:42:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:42:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:42:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:42:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:42:29,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:42:29,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 11:42:30,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 11:42:30,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 11:42:30,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:42:30,383 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-23 11:42:30,383 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:42:30,384 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #3 [2024-11-23 11:42:30,384 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:42:30,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:42:30,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:42:30,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:42:30,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:42:30,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:42:30,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:42:30,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-23 11:42:30,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:42:30,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-23 11:42:30,385 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-23 11:42:30,385 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-23 11:42:30,386 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-23 11:42:30,386 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-23 11:42:30,386 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-23 11:42:30,386 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:30,386 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-23 11:42:30,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:42:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1599304553, now seen corresponding path program 1 times [2024-11-23 11:42:30,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:42:30,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456484599] [2024-11-23 11:42:30,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:42:30,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:42:30,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:42:30,442 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:42:30,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 11:42:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:42:30,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 11:42:30,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:42:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 11:42:32,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:42:32,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-23 11:42:32,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-23 11:42:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-23 11:42:32,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:42:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456484599] [2024-11-23 11:42:32,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456484599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:42:32,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:42:32,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7] total 27 [2024-11-23 11:42:32,948 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:42:32,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 118 [2024-11-23 11:42:32,948 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:32,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-11-23 11:42:32,948 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:32,948 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-23 11:42:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:42:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2117926299, now seen corresponding path program 1 times [2024-11-23 11:42:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:42:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258547220] [2024-11-23 11:42:33,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:42:33,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:42:33,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:42:33,035 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:42:33,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 11:42:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:42:33,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 11:42:33,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:42:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 99 proven. 140 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-23 11:42:34,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:42:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 99 proven. 140 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-23 11:42:36,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:42:36,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258547220] [2024-11-23 11:42:36,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258547220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:42:36,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:42:36,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2024-11-23 11:42:36,586 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:42:36,586 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2024-11-23 11:42:36,586 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:36,586 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2024-11-23 11:42:36,586 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:42:36,586 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2024-11-23 11:42:36,586 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:42:36,586 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:42:36,586 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:42:36,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:42:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1433211908, now seen corresponding path program 4 times [2024-11-23 11:42:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 11:42:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601247950] [2024-11-23 11:42:36,589 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:42:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:42:36,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:42:36,591 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:42:36,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb31d041-921f-4c3e-b6d2-1d8e8dc89c98/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 11:42:36,880 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:42:36,880 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:42:36,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-23 11:42:36,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:42:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 2 proven. 221 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-23 11:42:38,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:42:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 2 proven. 221 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-23 11:42:45,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 11:42:45,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601247950] [2024-11-23 11:42:45,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601247950] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:42:45,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:42:45,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 28] total 52 [2024-11-23 11:42:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049501860] [2024-11-23 11:42:45,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 11:42:45,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-23 11:42:45,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 11:42:45,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-23 11:42:45,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=2181, Unknown=0, NotChecked=0, Total=2652 [2024-11-23 11:42:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:42:45,422 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:42:45,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.4423076923076925) internal successors, (231), 52 states have internal predecessors, (231), 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) [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:42:45,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.