./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:22:30,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:22:30,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:22:30,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:22:30,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:22:30,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:22:30,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:22:30,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:22:30,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:22:30,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:22:30,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:22:30,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:22:30,212 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:22:30,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:22:30,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:22:30,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:22:30,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:22:30,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:22:30,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:22:30,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:22:30,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:30,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:22:30,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:22:30,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:22:30,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:22:30,219 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:22:30,219 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:22:30,219 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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-27 06:22:30,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:22:30,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:22:30,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:22:30,619 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:22:30,620 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:22:30,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-27 06:22:34,144 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/33a45bf90/cd7d00b6b7244ba68bddd45d8dbf5656/FLAGb975adf86 [2024-11-27 06:22:34,462 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:22:34,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-27 06:22:34,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/33a45bf90/cd7d00b6b7244ba68bddd45d8dbf5656/FLAGb975adf86 [2024-11-27 06:22:34,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/33a45bf90/cd7d00b6b7244ba68bddd45d8dbf5656 [2024-11-27 06:22:34,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:22:34,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:22:34,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:34,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:22:34,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:22:34,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52047879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34, skipping insertion in model container [2024-11-27 06:22:34,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:22:34,793 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_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-27 06:22:34,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:34,820 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:22:34,857 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_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-27 06:22:34,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:22:34,890 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:22:34,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34 WrapperNode [2024-11-27 06:22:34,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:22:34,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:34,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:22:34,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:22:34,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,958 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 135 [2024-11-27 06:22:34,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:22:34,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:22:34,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:22:34,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:22:34,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:34,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:35,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:35,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:35,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:35,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:22:35,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:22:35,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:22:35,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:22:35,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (1/1) ... [2024-11-27 06:22:35,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:22:35,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:35,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:35,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:22:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:22:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:22:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:22:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:22:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:22:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:22:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:22:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:22:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:22:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:22:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:22:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:22:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:22:35,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:22:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:22:35,121 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:22:35,248 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:22:35,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:22:35,675 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:22:35,675 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:22:36,124 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:22:36,125 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 06:22:36,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:36 BoogieIcfgContainer [2024-11-27 06:22:36,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:22:36,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:22:36,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:22:36,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:22:36,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:22:34" (1/3) ... [2024-11-27 06:22:36,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f42b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:36, skipping insertion in model container [2024-11-27 06:22:36,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:22:34" (2/3) ... [2024-11-27 06:22:36,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f42b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:22:36, skipping insertion in model container [2024-11-27 06:22:36,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:22:36" (3/3) ... [2024-11-27 06:22:36,145 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-27 06:22:36,167 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:22:36,171 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. [2024-11-27 06:22:36,171 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:22:36,257 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 06:22:36,332 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:36,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:22:36,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:36,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:22:36,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:22:36,447 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:22:36,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:22:36,485 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;@3ca124b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:22:36,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 06:22:37,210 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)] === [2024-11-27 06:22:37,211 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:37,211 INFO L139 ounterexampleChecker]: Examining path program with hash -1903899775, occurence #1 [2024-11-27 06:22:37,211 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:37,211 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:37,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:37,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1268752147, now seen corresponding path program 1 times [2024-11-27 06:22:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:37,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765703085] [2024-11-27 06:22:37,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:37,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:22:38,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:38,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765703085] [2024-11-27 06:22:38,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765703085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:38,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:38,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 06:22:38,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185555397] [2024-11-27 06:22:38,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:38,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:22:38,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:38,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:22:38,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:22:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:38,147 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:38,148 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) [2024-11-27 06:22:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 06:22:38,339 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)] === [2024-11-27 06:22:38,339 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:38,340 INFO L139 ounterexampleChecker]: Examining path program with hash -1903899775, occurence #2 [2024-11-27 06:22:38,340 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:38,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:38,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:38,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-27 06:22:38,341 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:38,341 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-27 06:22:38,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:38,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:22:38,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:38,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:38,367 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:38,367 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-27 06:22:38,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1059493995, now seen corresponding path program 1 times [2024-11-27 06:22:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:38,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762528175] [2024-11-27 06:22:38,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:38,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:38,820 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:38,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762528175] [2024-11-27 06:22:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762528175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:38,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [714500487] [2024-11-27 06:22:38,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:38,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:38,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:38,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:39,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [714500487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:39,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:39,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 06:22:39,174 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:39,174 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:22:39,174 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:39,174 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-27 06:22:39,174 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:39,174 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-27 06:22:39,175 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:39,175 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:39,175 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:39,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash -529365971, now seen corresponding path program 1 times [2024-11-27 06:22:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759643761] [2024-11-27 06:22:39,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:39,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:39,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759643761] [2024-11-27 06:22:39,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759643761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:39,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254623024] [2024-11-27 06:22:39,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:39,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:39,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:39,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:39,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:22:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:39,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:39,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:39,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 06:22:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254623024] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:40,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:40,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-27 06:22:40,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552124097] [2024-11-27 06:22:40,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:40,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 06:22:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:40,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 06:22:40,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-27 06:22:40,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:40,104 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:40,105 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) [2024-11-27 06:22:40,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:40,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:40,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 06:22:40,586 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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:40,586 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)] === [2024-11-27 06:22:40,586 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:40,587 INFO L139 ounterexampleChecker]: Examining path program with hash -1903899775, occurence #3 [2024-11-27 06:22:40,587 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:40,587 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:40,587 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:40,587 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:22:40,587 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:40,587 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:22:40,587 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:40,587 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:40,587 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:40,588 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:22:40,588 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:40,588 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-27 06:22:40,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1293359656, now seen corresponding path program 1 times [2024-11-27 06:22:40,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-27 06:22:40,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934180483] [2024-11-27 06:22:40,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:22:40,998 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-27 06:22:40,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934180483] [2024-11-27 06:22:40,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934180483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:40,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1043691714] [2024-11-27 06:22:40,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:40,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:41,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 06:22:41,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:22:41,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1043691714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:41,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:22:41,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-27 06:22:41,273 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:22:41,274 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-27 06:22:41,274 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:41,274 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-27 06:22:41,274 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:41,274 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-27 06:22:41,274 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:41,274 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:41,274 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:41,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:41,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1707244947, now seen corresponding path program 2 times [2024-11-27 06:22:41,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:41,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115748080] [2024-11-27 06:22:41,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:41,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:41,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 06:22:41,310 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 06:22:41,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:41,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115748080] [2024-11-27 06:22:41,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115748080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:41,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:41,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 06:22:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928195712] [2024-11-27 06:22:41,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:41,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 06:22:41,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:41,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 06:22:41,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 06:22:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:41,557 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:41,558 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) [2024-11-27 06:22:41,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:41,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:41,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:41,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-11-27 06:22:41,840 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)] === [2024-11-27 06:22:41,840 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:41,840 INFO L139 ounterexampleChecker]: Examining path program with hash -2116281922, occurence #1 [2024-11-27 06:22:41,840 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:41,840 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:41,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash -876326641, now seen corresponding path program 3 times [2024-11-27 06:22:41,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:41,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505552601] [2024-11-27 06:22:41,841 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:41,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:41,907 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:41,907 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 06:22:42,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:42,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505552601] [2024-11-27 06:22:42,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505552601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:42,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:42,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 06:22:42,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881350776] [2024-11-27 06:22:42,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:42,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 06:22:42,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:42,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 06:22:42,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 06:22:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:42,275 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:42,276 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) [2024-11-27 06:22:42,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:42,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:42,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:42,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:43,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 06:22:43,038 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)] === [2024-11-27 06:22:43,039 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:43,039 INFO L139 ounterexampleChecker]: Examining path program with hash -257644414, occurence #1 [2024-11-27 06:22:43,039 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:43,039 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:43,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash -327784420, now seen corresponding path program 1 times [2024-11-27 06:22:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316344029] [2024-11-27 06:22:43,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:43,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 06:22:43,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316344029] [2024-11-27 06:22:43,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316344029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:43,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445428013] [2024-11-27 06:22:43,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:22:43,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:43,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:43,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:43,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:22:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:22:43,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:43,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 06:22:43,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 06:22:44,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445428013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:44,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:44,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-27 06:22:44,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947553028] [2024-11-27 06:22:44,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:44,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 06:22:44,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:44,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 06:22:44,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-27 06:22:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:44,187 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:44,187 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) [2024-11-27 06:22:44,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:44,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:44,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:44,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:44,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:44,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 06:22:44,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:44,681 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)] === [2024-11-27 06:22:44,681 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:44,681 INFO L139 ounterexampleChecker]: Examining path program with hash -257644414, occurence #2 [2024-11-27 06:22:44,681 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:44,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:22:44,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:44,682 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:22:44,682 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:44,682 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:22:44,682 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-27 06:22:44,683 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-27 06:22:44,683 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-11-27 06:22:44,683 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:44,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-11-27 06:22:44,683 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:44,683 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:44,683 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:44,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1272729636, now seen corresponding path program 2 times [2024-11-27 06:22:44,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:44,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672716686] [2024-11-27 06:22:44,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:44,731 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:22:44,731 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 06:22:45,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672716686] [2024-11-27 06:22:45,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672716686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:45,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670841757] [2024-11-27 06:22:45,124 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:22:45,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:45,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:45,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:45,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:22:45,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:22:45,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:45,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:22:45,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 06:22:45,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:22:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 06:22:45,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670841757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:22:45,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 06:22:45,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-11-27 06:22:45,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906170210] [2024-11-27 06:22:45,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 06:22:45,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 06:22:45,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:45,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 06:22:45,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-27 06:22:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:45,817 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:45,817 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) [2024-11-27 06:22:45,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:45,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:45,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:45,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:45,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:45,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:46,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:46,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 06:22:46,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 06:22:46,532 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)] === [2024-11-27 06:22:46,532 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:46,533 INFO L139 ounterexampleChecker]: Examining path program with hash -257644414, occurence #3 [2024-11-27 06:22:46,533 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:22:46,533 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:22:46,533 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,533 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-27 06:22:46,534 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,534 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:22:46,534 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:46,534 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:22:46,534 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:46,534 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:22:46,534 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:46,535 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-27 06:22:46,535 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,535 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-27 06:22:46,535 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,535 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-11-27 06:22:46,536 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,536 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-27 06:22:46,536 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,536 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-27 06:22:46,536 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:22:46,536 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-11-27 06:22:46,536 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:22:46,536 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:22:46,538 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:46,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1230799083, now seen corresponding path program 3 times [2024-11-27 06:22:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:46,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043228969] [2024-11-27 06:22:46,539 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:22:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:46,603 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 06:22:46,604 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 06:22:47,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:47,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043228969] [2024-11-27 06:22:47,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043228969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:47,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:47,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 06:22:47,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168439619] [2024-11-27 06:22:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:47,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:22:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:47,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:22:47,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:22:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:47,006 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:47,007 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) [2024-11-27 06:22:47,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:47,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:47,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:47,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 06:22:47,309 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)] === [2024-11-27 06:22:47,309 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:47,309 INFO L139 ounterexampleChecker]: Examining path program with hash -405864043, occurence #1 [2024-11-27 06:22:47,309 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:47,309 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:47,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:47,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1875098617, now seen corresponding path program 4 times [2024-11-27 06:22:47,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610468593] [2024-11-27 06:22:47,310 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:47,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:47,360 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:47,360 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 06:22:47,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610468593] [2024-11-27 06:22:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610468593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:22:47,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:22:47,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 06:22:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790963332] [2024-11-27 06:22:47,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:22:47,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 06:22:47,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 06:22:47,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 06:22:47,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 06:22:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:47,580 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:22:47,581 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) [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:22:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:22:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 06:22:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 06:22:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:22:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:22:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:22:47,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 06:22:47,855 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)] === [2024-11-27 06:22:47,855 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:22:47,855 INFO L139 ounterexampleChecker]: Examining path program with hash 1036623935, occurence #1 [2024-11-27 06:22:47,855 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:22:47,855 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:22:47,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:22:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1946888906, now seen corresponding path program 4 times [2024-11-27 06:22:47,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 06:22:47,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371678630] [2024-11-27 06:22:47,856 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:47,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 06:22:48,035 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:48,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 06:22:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 06:22:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371678630] [2024-11-27 06:22:50,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371678630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 06:22:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260770668] [2024-11-27 06:22:50,973 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:22:50,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:22:50,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:22:50,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:22:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:22:51,374 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:22:51,374 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:22:51,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-27 06:22:51,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:22:52,324 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-11-27 06:22:52,326 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 [2024-11-27 06:22:54,085 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-11-27 06:22:54,086 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 [2024-11-27 06:22:58,902 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-11-27 06:22:58,903 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 [2024-11-27 06:25:30,089 WARN L286 SmtUtils]: Spent 2.36m 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) [2024-11-27 06:25:30,092 INFO L349 Elim1Store]: treesize reduction 2508, result has 71.1 percent of original size [2024-11-27 06:25:30,095 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 [2024-11-27 06:32:53,864 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 06:32:53,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-27 06:32:53,865 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-27 06:32:53,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 06:32:54,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 06:32:54,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-27 06:32:54,073 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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/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 [2024-11-27 06:32:54,079 INFO L158 Benchmark]: Toolchain (without parser) took 619587.70ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 92.6MB in the beginning and 672.0MB in the end (delta: -579.4MB). Peak memory consumption was 812.2MB. Max. memory is 16.1GB. [2024-11-27 06:32:54,079 INFO L158 Benchmark]: CDTParser took 1.56ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:32:54,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.67ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 06:32:54,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.68ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:32:54,080 INFO L158 Benchmark]: Boogie Preprocessor took 65.06ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 06:32:54,080 INFO L158 Benchmark]: RCFGBuilder took 1100.89ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 79.7MB in the end (delta: -2.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-11-27 06:32:54,081 INFO L158 Benchmark]: TraceAbstraction took 617948.02ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 79.1MB in the beginning and 672.0MB in the end (delta: -592.9MB). Peak memory consumption was 798.5MB. Max. memory is 16.1GB. [2024-11-27 06:32:54,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.56ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.67ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.68ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.06ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1100.89ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 79.7MB in the end (delta: -2.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * TraceAbstraction took 617948.02ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 79.1MB in the beginning and 672.0MB in the end (delta: -592.9MB). Peak memory consumption was 798.5MB. 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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:32:56,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:32:56,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-27 06:32:56,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:32:56,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:32:56,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:32:56,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:32:56,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:32:56,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:32:56,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:32:56,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:32:56,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:32:56,848 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:32:56,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:32:56,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:32:56,848 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:32:56,849 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 06:32:56,850 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 06:32:56,850 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:32:56,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:32:56,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:32:56,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:32:56,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:32:56,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:32:56,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:32:56,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:32:56,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:32:56,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 06:32:56,852 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:32:56,853 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 06:32:56,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:32:56,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:32:56,853 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:32:56,853 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:32:56,853 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_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-11-27 06:32:57,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:32:57,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:32:57,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:32:57,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:32:57,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:32:57,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-27 06:33:00,118 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/7ebc8f5e6/52c0f98f50d84e1ea3be89449e4beed1/FLAGb9067486c [2024-11-27 06:33:00,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:33:00,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-11-27 06:33:00,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/7ebc8f5e6/52c0f98f50d84e1ea3be89449e4beed1/FLAGb9067486c [2024-11-27 06:33:00,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/data/7ebc8f5e6/52c0f98f50d84e1ea3be89449e4beed1 [2024-11-27 06:33:00,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:33:00,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:33:00,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:33:00,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:33:00,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:33:00,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df0071d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00, skipping insertion in model container [2024-11-27 06:33:00,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:33:00,730 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_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-27 06:33:00,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:33:00,761 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:33:00,803 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_f7f4eb62-e880-48e5-b82f-4e401271d397/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-11-27 06:33:00,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:33:00,830 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:33:00,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00 WrapperNode [2024-11-27 06:33:00,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:33:00,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:33:00,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:33:00,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:33:00,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,892 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 134 [2024-11-27 06:33:00,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:33:00,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:33:00,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:33:00,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:33:00,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,934 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:33:00,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:33:00,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:33:00,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:33:00,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (1/1) ... [2024-11-27 06:33:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:33:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:00,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:33:01,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:33:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:33:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-27 06:33:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-27 06:33:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 06:33:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 06:33:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 06:33:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 06:33:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-27 06:33:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-27 06:33:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 06:33:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 06:33:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:33:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:33:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:33:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-27 06:33:01,039 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:33:01,218 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:33:01,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:33:01,926 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:33:01,926 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 06:33:02,451 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 06:33:02,451 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-27 06:33:02,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:33:02 BoogieIcfgContainer [2024-11-27 06:33:02,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 06:33:02,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 06:33:02,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 06:33:02,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 06:33:02,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:33:00" (1/3) ... [2024-11-27 06:33:02,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32baa2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:33:02, skipping insertion in model container [2024-11-27 06:33:02,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:33:00" (2/3) ... [2024-11-27 06:33:02,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32baa2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:33:02, skipping insertion in model container [2024-11-27 06:33:02,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:33:02" (3/3) ... [2024-11-27 06:33:02,464 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-11-27 06:33:02,480 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 06:33:02,482 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. [2024-11-27 06:33:02,482 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 06:33:02,561 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-27 06:33:02,624 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:33:02,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-27 06:33:02,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:02,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-27 06:33:02,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-27 06:33:02,723 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-27 06:33:02,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-27 06:33:02,755 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;@1df4366, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 06:33:02,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 06:33:03,801 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)] === [2024-11-27 06:33:03,802 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:03,802 INFO L139 ounterexampleChecker]: Examining path program with hash 1384540497, occurence #1 [2024-11-27 06:33:03,802 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:03,802 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:03,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1998701587, now seen corresponding path program 1 times [2024-11-27 06:33:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:03,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2119723138] [2024-11-27 06:33:03,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:03,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:03,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:03,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:03,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 06:33:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:04,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 06:33:04,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:33:04,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:33:04,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119723138] [2024-11-27 06:33:04,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119723138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:04,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:33:04,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 06:33:04,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77939211] [2024-11-27 06:33:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:04,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 06:33:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:04,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 06:33:04,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 06:33:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:04,418 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:04,421 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) [2024-11-27 06:33:04,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:05,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 06:33:05,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:05,374 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)] === [2024-11-27 06:33:05,375 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:05,376 INFO L139 ounterexampleChecker]: Examining path program with hash -2016963033, occurence #1 [2024-11-27 06:33:05,377 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:05,377 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:05,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:05,380 INFO L85 PathProgramCache]: Analyzing trace with hash 151626150, now seen corresponding path program 2 times [2024-11-27 06:33:05,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:05,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508283728] [2024-11-27 06:33:05,381 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:05,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:05,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:05,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:05,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 06:33:05,574 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:05,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:05,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:05,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:33:06,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 06:33:06,160 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508283728] [2024-11-27 06:33:06,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508283728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:06,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:06,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 06:33:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043628828] [2024-11-27 06:33:06,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:06,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 06:33:06,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:06,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 06:33:06,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-27 06:33:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:06,164 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:06,165 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) [2024-11-27 06:33:06,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:06,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:06,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 06:33:06,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:06,847 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)] === [2024-11-27 06:33:06,847 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:06,848 INFO L139 ounterexampleChecker]: Examining path program with hash -2016963033, occurence #2 [2024-11-27 06:33:06,848 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:06,848 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:06,848 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:06,849 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-27 06:33:06,849 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:06,849 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:33:06,882 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:06,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-27 06:33:06,882 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:06,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:33:06,883 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:06,883 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-27 06:33:06,883 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:06,883 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:33:06,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1821083182, now seen corresponding path program 1 times [2024-11-27 06:33:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:06,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214754295] [2024-11-27 06:33:06,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:06,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:06,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:06,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:06,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 06:33:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:07,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 06:33:07,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 06:33:07,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:07,527 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 [2024-11-27 06:33:07,532 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 [2024-11-27 06:33:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-27 06:33:07,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:07,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214754295] [2024-11-27 06:33:07,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214754295] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 06:33:07,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 06:33:07,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-27 06:33:07,710 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 39. Constructing proof automaton... [2024-11-27 06:33:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:07,712 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-27 06:33:07,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 06:33:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:07,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:33:07,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-27 06:33:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:07,715 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:07,715 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) [2024-11-27 06:33:07,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:07,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:07,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:08,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:08,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:08,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 06:33:08,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:08,919 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)] === [2024-11-27 06:33:08,919 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:08,919 INFO L139 ounterexampleChecker]: Examining path program with hash -1826775700, occurence #1 [2024-11-27 06:33:08,919 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:08,920 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:08,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1789266023, now seen corresponding path program 1 times [2024-11-27 06:33:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:08,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90264553] [2024-11-27 06:33:08,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:08,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:08,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:08,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:08,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 06:33:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:09,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 06:33:09,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:33:09,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 06:33:10,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:10,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90264553] [2024-11-27 06:33:10,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90264553] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:10,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:10,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-27 06:33:10,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936222858] [2024-11-27 06:33:10,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:10,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 06:33:10,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:10,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 06:33:10,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-27 06:33:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:10,032 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:10,032 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) [2024-11-27 06:33:10,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:10,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:10,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:10,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:10,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 06:33:11,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:11,015 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)] === [2024-11-27 06:33:11,015 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:11,015 INFO L139 ounterexampleChecker]: Examining path program with hash -1826775700, occurence #2 [2024-11-27 06:33:11,015 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:11,016 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-27 06:33:11,016 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:33:11,016 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-27 06:33:11,016 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-27 06:33:11,016 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-27 06:33:11,016 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,016 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-27 06:33:11,016 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:11,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-27 06:33:11,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1730538461, now seen corresponding path program 1 times [2024-11-27 06:33:11,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:11,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046930076] [2024-11-27 06:33:11,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:11,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:11,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:11,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:11,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 06:33:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:11,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 06:33:11,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:12,396 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 06:33:12,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 06:33:14,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:14,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046930076] [2024-11-27 06:33:14,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046930076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:14,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:14,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2024-11-27 06:33:14,888 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:14,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-27 06:33:14,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:14,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-27 06:33:14,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:14,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-27 06:33:14,889 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:14,889 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:33:14,889 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:14,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash 870803751, now seen corresponding path program 2 times [2024-11-27 06:33:14,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:14,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904609181] [2024-11-27 06:33:14,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:14,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:14,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:14,893 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:14,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 06:33:15,091 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:15,091 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:15,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:33:15,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 06:33:15,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 06:33:16,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:16,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904609181] [2024-11-27 06:33:16,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904609181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:16,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-27 06:33:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216966503] [2024-11-27 06:33:16,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:16,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 06:33:16,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:16,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 06:33:16,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-27 06:33:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:16,894 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:16,895 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) [2024-11-27 06:33:16,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:16,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:16,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:16,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:16,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:21,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 06:33:22,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 06:33:22,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:22,289 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)] === [2024-11-27 06:33:22,289 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:22,290 INFO L139 ounterexampleChecker]: Examining path program with hash 652250584, occurence #1 [2024-11-27 06:33:22,290 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:22,290 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:22,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:22,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1844055760, now seen corresponding path program 1 times [2024-11-27 06:33:22,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:22,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755946523] [2024-11-27 06:33:22,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:22,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:22,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:22,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:22,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 06:33:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:22,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 06:33:22,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-27 06:33:22,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 06:33:22,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:22,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755946523] [2024-11-27 06:33:22,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755946523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 06:33:22,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 06:33:22,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 06:33:22,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582688367] [2024-11-27 06:33:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 06:33:22,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 06:33:22,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:22,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 06:33:22,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 06:33:22,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:22,558 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:22,558 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) [2024-11-27 06:33:22,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:22,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:22,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:22,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:22,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:22,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:22,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 06:33:23,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:23,150 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)] === [2024-11-27 06:33:23,150 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:23,150 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #1 [2024-11-27 06:33:23,150 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:33:23,150 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:23,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 494902199, now seen corresponding path program 2 times [2024-11-27 06:33:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112944036] [2024-11-27 06:33:23,151 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 06:33:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:23,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:23,156 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:23,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 06:33:23,394 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 06:33:23,394 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:23,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 06:33:23,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 16 proven. 139 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:33:24,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 16 proven. 139 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-27 06:33:24,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:24,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112944036] [2024-11-27 06:33:24,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112944036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:24,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:24,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 06:33:24,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409234250] [2024-11-27 06:33:24,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:24,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 06:33:24,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:24,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 06:33:24,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2024-11-27 06:33:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:24,889 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:24,889 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) [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:24,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:33:26,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 06:33:26,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:26,468 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)] === [2024-11-27 06:33:26,468 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:33:26,471 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #2 [2024-11-27 06:33:26,471 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:33:26,472 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:33:26,472 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,472 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-27 06:33:26,472 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,472 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-27 06:33:26,472 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:26,472 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:33:26,472 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:26,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:33:26,473 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:26,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-27 06:33:26,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-27 06:33:26,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-27 06:33:26,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-11-27 06:33:26,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,474 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-27 06:33:26,474 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:26,474 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2024-11-27 06:33:26,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:26,527 INFO L85 PathProgramCache]: Analyzing trace with hash 693785506, now seen corresponding path program 1 times [2024-11-27 06:33:26,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:26,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065505112] [2024-11-27 06:33:26,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:26,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:26,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:26,530 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:26,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 06:33:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:26,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 06:33:26,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-27 06:33:27,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:27,606 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 [2024-11-27 06:33:27,608 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 [2024-11-27 06:33:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 06:33:28,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:28,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065505112] [2024-11-27 06:33:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065505112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:28,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:28,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6] total 23 [2024-11-27 06:33:28,008 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:28,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2024-11-27 06:33:28,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:28,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2024-11-27 06:33:28,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:28,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2024-11-27 06:33:28,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1131985532, now seen corresponding path program 1 times [2024-11-27 06:33:28,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026772102] [2024-11-27 06:33:28,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:33:28,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:28,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:28,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 06:33:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:33:28,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 06:33:28,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 36 proven. 133 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-27 06:33:29,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 36 proven. 133 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-27 06:33:30,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:30,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026772102] [2024-11-27 06:33:30,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026772102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:30,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:30,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-27 06:33:30,364 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:33:30,364 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2024-11-27 06:33:30,364 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:30,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-27 06:33:30,365 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:33:30,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2024-11-27 06:33:30,365 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:33:30,365 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:33:30,365 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:33:30,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:33:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1868780279, now seen corresponding path program 3 times [2024-11-27 06:33:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:33:30,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231635005] [2024-11-27 06:33:30,366 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 06:33:30,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:33:30,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:33:30,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:33:30,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 06:33:33,041 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 06:33:33,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:33:33,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 06:33:33,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:33:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 66 proven. 38 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-27 06:33:36,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:33:46,399 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 5 proven. 79 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-27 06:33:46,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:33:46,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231635005] [2024-11-27 06:33:46,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231635005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:33:46,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:33:46,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 57 [2024-11-27 06:33:46,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50777162] [2024-11-27 06:33:46,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:33:46,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-27 06:33:46,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:33:46,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-27 06:33:46,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=2701, Unknown=0, NotChecked=0, Total=3192 [2024-11-27 06:33:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:33:46,403 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:33:46,403 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) [2024-11-27 06:33:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:33:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:33:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:33:46,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:33:46,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:33:46,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:33:46,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:34:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:34:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:34:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-27 06:34:39,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 06:34:39,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 06:34:39,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 06:34:39,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:34:39,942 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)] === [2024-11-27 06:34:39,942 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:34:39,942 INFO L139 ounterexampleChecker]: Examining path program with hash -1888035223, occurence #3 [2024-11-27 06:34:39,942 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-27 06:34:39,942 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-27 06:34:39,942 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,942 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-27 06:34:39,942 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-27 06:34:39,943 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-27 06:34:39,943 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-27 06:34:39,943 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-27 06:34:39,943 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-27 06:34:39,943 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,943 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-27 06:34:39,943 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-27 06:34:39,944 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-27 06:34:39,944 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-27 06:34:39,944 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:39,944 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-27 06:34:39,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:34:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1599304553, now seen corresponding path program 1 times [2024-11-27 06:34:39,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:34:39,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312386478] [2024-11-27 06:34:39,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:34:39,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:34:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:34:39,987 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:34:39,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 06:34:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:34:40,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 06:34:40,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:34:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 06:34:41,321 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:34:41,325 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 [2024-11-27 06:34:41,327 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 [2024-11-27 06:34:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-27 06:34:41,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:34:41,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312386478] [2024-11-27 06:34:41,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312386478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:34:41,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:34:41,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7] total 27 [2024-11-27 06:34:41,809 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:34:41,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 118 [2024-11-27 06:34:41,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:41,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-11-27 06:34:41,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:41,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-27 06:34:41,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:34:41,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2117926299, now seen corresponding path program 1 times [2024-11-27 06:34:41,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:34:41,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883141943] [2024-11-27 06:34:41,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 06:34:41,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:34:41,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:34:41,877 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:34:41,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 06:34:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 06:34:42,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 06:34:42,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:34:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 99 proven. 140 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-27 06:34:43,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:34:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 99 proven. 140 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-27 06:34:44,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:34:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883141943] [2024-11-27 06:34:44,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883141943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:34:44,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:34:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2024-11-27 06:34:44,588 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-27 06:34:44,588 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 140 [2024-11-27 06:34:44,588 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:44,588 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2024-11-27 06:34:44,588 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-27 06:34:44,588 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2024-11-27 06:34:44,588 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-27 06:34:44,588 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-27 06:34:44,588 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:34:44,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:34:44,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1433211908, now seen corresponding path program 4 times [2024-11-27 06:34:44,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:34:44,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87809811] [2024-11-27 06:34:44,589 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 06:34:44,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:34:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:34:44,591 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:34:44,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 06:34:44,827 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 06:34:44,827 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 06:34:44,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 06:34:44,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 06:34:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 2 proven. 221 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-27 06:34:45,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 06:34:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 2 proven. 221 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-27 06:34:51,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 06:34:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87809811] [2024-11-27 06:34:51,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87809811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 06:34:51,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 06:34:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 28] total 52 [2024-11-27 06:34:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194284572] [2024-11-27 06:34:51,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 06:34:51,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-27 06:34:51,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 06:34:51,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-27 06:34:51,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=2181, Unknown=0, NotChecked=0, Total=2652 [2024-11-27 06:34:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:34:51,340 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-27 06:34:51,340 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) [2024-11-27 06:34:51,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:34:51,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:34:51,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-11-27 06:34:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 06:36:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-27 06:36:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-27 06:36:19,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 06:36:19,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 06:36:19,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 06:36:19,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:19,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 06:36:19,962 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-27 06:36:19,963 INFO L139 ounterexampleChecker]: Examining path program with hash -1585948388, occurence #1 [2024-11-27 06:36:19,963 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-27 06:36:19,963 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-27 06:36:19,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 06:36:19,963 INFO L85 PathProgramCache]: Analyzing trace with hash 818837814, now seen corresponding path program 5 times [2024-11-27 06:36:19,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 06:36:19,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083182282] [2024-11-27 06:36:19,964 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 06:36:19,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 06:36:19,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:36:19,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 06:36:19,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f4eb62-e880-48e5-b82f-4e401271d397/bin/ugemcutter-verify-fG3NtRWMco/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process