./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX --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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:36:54,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:36:55,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-05 09:36:55,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:36:55,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:36:55,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:36:55,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:36:55,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:36:55,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:36:55,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:36:55,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:36:55,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:36:55,030 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:36:55,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:36:55,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 09:36:55,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:36:55,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:36:55,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:36:55,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 09:36:55,032 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:36:55,033 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:36:55,033 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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX 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 -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2024-12-05 09:36:55,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:36:55,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:36:55,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:36:55,241 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:36:55,242 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:36:55,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-12-05 09:36:57,858 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/f5cf7079c/2d04572377d5426a8a02b5f96cbdba9a/FLAG6892a2e77 [2024-12-05 09:36:58,063 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:36:58,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-12-05 09:36:58,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/f5cf7079c/2d04572377d5426a8a02b5f96cbdba9a/FLAG6892a2e77 [2024-12-05 09:36:58,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/f5cf7079c/2d04572377d5426a8a02b5f96cbdba9a [2024-12-05 09:36:58,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:36:58,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:36:58,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:36:58,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:36:58,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:36:58,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1750b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58, skipping insertion in model container [2024-12-05 09:36:58,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:36:58,235 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_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2854,2867] [2024-12-05 09:36:58,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:36:58,252 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:36:58,272 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_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2854,2867] [2024-12-05 09:36:58,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:36:58,288 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:36:58,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58 WrapperNode [2024-12-05 09:36:58,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:36:58,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:36:58,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:36:58,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:36:58,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,323 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 218 [2024-12-05 09:36:58,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:36:58,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:36:58,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:36:58,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:36:58,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:36:58,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:36:58,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:36:58,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:36:58,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (1/1) ... [2024-12-05 09:36:58,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:36:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:36:58,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:36:58,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:36:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-05 09:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-05 09:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-05 09:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 09:36:58,403 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:36:58,491 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:36:58,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:36:58,868 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:36:58,869 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:36:59,138 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:36:59,138 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-05 09:36:59,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:36:59 BoogieIcfgContainer [2024-12-05 09:36:59,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:36:59,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:36:59,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:36:59,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:36:59,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:36:58" (1/3) ... [2024-12-05 09:36:59,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41108142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:36:59, skipping insertion in model container [2024-12-05 09:36:59,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:36:58" (2/3) ... [2024-12-05 09:36:59,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41108142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:36:59, skipping insertion in model container [2024-12-05 09:36:59,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:36:59" (3/3) ... [2024-12-05 09:36:59,146 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-12-05 09:36:59,157 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:36:59,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-min.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-05 09:36:59,158 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:36:59,204 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-05 09:36:59,244 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:36:59,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:36:59,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:36:59,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:36:59,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:36:59,311 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:36:59,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 09:36:59,330 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;@3a21c337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:36:59,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-05 09:37:00,021 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)] === [2024-12-05 09:37:00,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:00,021 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #1 [2024-12-05 09:37:00,021 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:00,022 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:00,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1191580267, now seen corresponding path program 1 times [2024-12-05 09:37:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88027876] [2024-12-05 09:37:00,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:37:00,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:00,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88027876] [2024-12-05 09:37:00,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88027876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:00,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:00,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 09:37:00,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969870938] [2024-12-05 09:37:00,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:00,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:37:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:00,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 09:37:00,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 09:37:00,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:00,398 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:00,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-12-05 09:37:00,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:00,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 09:37:00,477 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)] === [2024-12-05 09:37:00,477 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:00,477 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #2 [2024-12-05 09:37:00,477 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:00,477 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:00,478 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,478 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-05 09:37:00,478 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,478 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-05 09:37:00,478 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,478 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:37:00,491 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,491 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-05 09:37:00,491 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,491 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-05 09:37:00,492 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-12-05 09:37:00,492 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-05 09:37:00,492 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,492 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:00,492 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:00,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:00,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2047064655, now seen corresponding path program 1 times [2024-12-05 09:37:00,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:00,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354230431] [2024-12-05 09:37:00,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:00,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 09:37:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354230431] [2024-12-05 09:37:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354230431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:00,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 09:37:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546280763] [2024-12-05 09:37:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:00,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 09:37:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:00,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:37:00,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:37:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:00,655 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:00,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-12-05 09:37:00,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:00,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:00,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:00,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 09:37:00,747 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)] === [2024-12-05 09:37:00,747 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:00,747 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #3 [2024-12-05 09:37:00,747 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:00,747 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:00,747 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,747 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-05 09:37:00,748 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 09:37:00,748 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:37:00,748 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:37:00,748 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:00,748 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-05 09:37:00,748 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:00,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:37:00,748 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:00,748 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:00,749 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:00,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:00,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1696621244, now seen corresponding path program 1 times [2024-12-05 09:37:00,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:00,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682155471] [2024-12-05 09:37:00,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 09:37:00,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682155471] [2024-12-05 09:37:00,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682155471] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781559793] [2024-12-05 09:37:00,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:00,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:00,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:00,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 09:37:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:01,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 09:37:01,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 09:37:01,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 09:37:01,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781559793] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:01,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:01,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-05 09:37:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185601464] [2024-12-05 09:37:01,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:01,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-05 09:37:01,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:01,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-05 09:37:01,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-05 09:37:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:01,229 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:01,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 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) [2024-12-05 09:37:01,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:01,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:01,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:01,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 09:37:01,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:01,571 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)] === [2024-12-05 09:37:01,571 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:01,571 INFO L139 ounterexampleChecker]: Examining path program with hash 445860844, occurence #4 [2024-12-05 09:37:01,571 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:01,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:01,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:01,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-05 09:37:01,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:01,571 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-05 09:37:01,571 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:01,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:37:01,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:01,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:01,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:01,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:01,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:01,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 09:37:01,572 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:01,572 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-05 09:37:01,572 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:01,572 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:01,572 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:01,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash -236802101, now seen corresponding path program 2 times [2024-12-05 09:37:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:01,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601688915] [2024-12-05 09:37:01,573 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:01,603 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 09:37:01,604 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-05 09:37:01,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:01,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601688915] [2024-12-05 09:37:01,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601688915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:01,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:01,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 09:37:01,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366906053] [2024-12-05 09:37:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:01,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 09:37:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:01,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 09:37:01,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-05 09:37:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:01,711 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:01,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-12-05 09:37:01,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:01,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:01,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:01,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:01,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-05 09:37:01,806 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)] === [2024-12-05 09:37:01,806 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:01,806 INFO L139 ounterexampleChecker]: Examining path program with hash -2048645503, occurence #1 [2024-12-05 09:37:01,806 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:01,806 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:01,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash 610782456, now seen corresponding path program 1 times [2024-12-05 09:37:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973527432] [2024-12-05 09:37:01,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:01,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:02,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973527432] [2024-12-05 09:37:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973527432] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453249345] [2024-12-05 09:37:02,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:02,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:02,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:02,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:02,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 09:37:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:02,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 09:37:02,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:02,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453249345] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:02,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:37:02,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2024-12-05 09:37:02,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852302] [2024-12-05 09:37:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:02,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:37:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:02,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:37:02,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-05 09:37:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:02,305 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:02,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-12-05 09:37:02,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:02,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:02,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:02,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:02,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:02,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 09:37:02,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:02,813 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)] === [2024-12-05 09:37:02,813 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:02,813 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #1 [2024-12-05 09:37:02,813 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:02,813 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:02,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2074818213, now seen corresponding path program 1 times [2024-12-05 09:37:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492640480] [2024-12-05 09:37:02,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:03,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492640480] [2024-12-05 09:37:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492640480] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169313429] [2024-12-05 09:37:03,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:03,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:03,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:03,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:03,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 09:37:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:03,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:03,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:03,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 09:37:03,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169313429] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:03,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:03,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-12-05 09:37:03,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115637743] [2024-12-05 09:37:03,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:03,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-05 09:37:03,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:03,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-05 09:37:03,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-12-05 09:37:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:03,370 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:03,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 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) [2024-12-05 09:37:03,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:03,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:03,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:03,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:03,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:03,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:03,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 09:37:03,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:03,707 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)] === [2024-12-05 09:37:03,707 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:03,707 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #2 [2024-12-05 09:37:03,707 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:03,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 09:37:03,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-05 09:37:03,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:03,708 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:03,708 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:03,708 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-05 09:37:03,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-12-05 09:37:03,708 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:03,708 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-12-05 09:37:03,708 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:03,708 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:03,708 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:03,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1459669502, now seen corresponding path program 2 times [2024-12-05 09:37:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:03,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854322257] [2024-12-05 09:37:03,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:03,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:03,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:37:03,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 09:37:03,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:03,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854322257] [2024-12-05 09:37:03,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854322257] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:03,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933532760] [2024-12-05 09:37:03,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:03,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:03,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:03,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 09:37:04,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:37:04,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:04,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:37:04,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 09:37:04,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 09:37:04,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933532760] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:04,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-12-05 09:37:04,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437501795] [2024-12-05 09:37:04,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:04,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-05 09:37:04,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:04,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-05 09:37:04,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-12-05 09:37:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:04,330 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 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) [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:04,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:04,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 09:37:04,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-05 09:37:04,897 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)] === [2024-12-05 09:37:04,897 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:04,897 INFO L139 ounterexampleChecker]: Examining path program with hash -960192901, occurence #3 [2024-12-05 09:37:04,897 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:04,897 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:04,897 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,897 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 09:37:04,897 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-05 09:37:04,898 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-05 09:37:04,898 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:04,898 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:04,898 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-05 09:37:04,898 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-05 09:37:04,898 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-12-05 09:37:04,898 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:04,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-12-05 09:37:04,898 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:04,898 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:04,899 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:04,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1996516632, now seen corresponding path program 3 times [2024-12-05 09:37:04,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:04,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503167635] [2024-12-05 09:37:04,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:04,978 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-05 09:37:04,978 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:37:05,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:05,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503167635] [2024-12-05 09:37:05,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503167635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:05,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:05,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-05 09:37:05,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431242764] [2024-12-05 09:37:05,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:05,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 09:37:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:05,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 09:37:05,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 09:37:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:05,192 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:05,192 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) [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:05,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-05 09:37:05,731 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)] === [2024-12-05 09:37:05,731 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:05,731 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #1 [2024-12-05 09:37:05,731 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:05,731 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:05,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1998138363, now seen corresponding path program 1 times [2024-12-05 09:37:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599499639] [2024-12-05 09:37:05,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:05,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-05 09:37:05,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599499639] [2024-12-05 09:37:05,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599499639] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:05,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995644582] [2024-12-05 09:37:05,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:37:05,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:05,967 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:05,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 09:37:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:37:06,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-05 09:37:06,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-05 09:37:06,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-05 09:37:06,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995644582] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:06,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-05 09:37:06,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153135569] [2024-12-05 09:37:06,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:06,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-05 09:37:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:06,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-05 09:37:06,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2024-12-05 09:37:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:06,452 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:06,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 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) [2024-12-05 09:37:06,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:06,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:06,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:06,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:06,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 09:37:06,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-05 09:37:06,838 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)] === [2024-12-05 09:37:06,838 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:06,838 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #2 [2024-12-05 09:37:06,838 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:06,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:06,838 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:37:06,838 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:37:06,839 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:06,839 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:06,839 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:37:06,839 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 09:37:06,839 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-05 09:37:06,839 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-12-05 09:37:06,839 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-05 09:37:06,839 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2024-12-05 09:37:06,839 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:06,839 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-12-05 09:37:06,840 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:06,840 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:06,840 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:06,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2081256588, now seen corresponding path program 2 times [2024-12-05 09:37:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859851787] [2024-12-05 09:37:06,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:06,876 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:37:06,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-05 09:37:07,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:07,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859851787] [2024-12-05 09:37:07,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859851787] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:07,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659115914] [2024-12-05 09:37:07,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:37:07,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:07,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:07,048 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:07,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 09:37:07,195 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:37:07,195 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:07,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-05 09:37:07,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-05 09:37:07,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:37:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-05 09:37:07,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659115914] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:37:07,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 09:37:07,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-05 09:37:07,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379825853] [2024-12-05 09:37:07,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 09:37:07,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-05 09:37:07,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:07,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-05 09:37:07,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-12-05 09:37:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:07,534 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:07,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 21 states have internal predecessors, (105), 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) [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:07,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:37:08,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 09:37:08,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-05 09:37:08,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:37:08,295 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:08,295 INFO L139 ounterexampleChecker]: Examining path program with hash -371095232, occurence #3 [2024-12-05 09:37:08,295 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:37:08,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:37:08,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:37:08,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:37:08,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:37:08,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:08,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:37:08,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2024-12-05 09:37:08,296 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:37:08,296 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-12-05 09:37:08,296 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:37:08,296 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:37:08,296 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:08,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:08,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1892103706, now seen corresponding path program 3 times [2024-12-05 09:37:08,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:08,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169776221] [2024-12-05 09:37:08,297 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:37:08,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:08,339 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-05 09:37:08,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-05 09:37:08,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:08,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169776221] [2024-12-05 09:37:08,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169776221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:08,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:08,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 09:37:08,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844680421] [2024-12-05 09:37:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:08,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 09:37:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:08,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 09:37:08,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-05 09:37:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:08,602 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:08,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:37:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:37:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 09:37:08,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-05 09:37:08,969 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:37:08,969 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:08,969 INFO L139 ounterexampleChecker]: Examining path program with hash -668347520, occurence #1 [2024-12-05 09:37:08,969 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:08,969 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:08,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:08,969 INFO L85 PathProgramCache]: Analyzing trace with hash -667900339, now seen corresponding path program 4 times [2024-12-05 09:37:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:08,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251690331] [2024-12-05 09:37:08,970 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:08,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:08,994 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:08,995 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-05 09:37:09,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251690331] [2024-12-05 09:37:09,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251690331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:37:09,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:37:09,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-05 09:37:09,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205748763] [2024-12-05 09:37:09,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:37:09,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:37:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:37:09,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:37:09,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:37:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:09,085 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:37:09,085 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) [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 09:37:09,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 09:37:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 09:37:09,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-05 09:37:09,290 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:37:09,290 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:37:09,290 INFO L139 ounterexampleChecker]: Examining path program with hash 840268048, occurence #1 [2024-12-05 09:37:09,290 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:37:09,290 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:37:09,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:37:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash 895609674, now seen corresponding path program 4 times [2024-12-05 09:37:09,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:37:09,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821493498] [2024-12-05 09:37:09,290 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:37:09,554 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:09,554 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-05 09:37:18,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:37:18,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821493498] [2024-12-05 09:37:18,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821493498] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 09:37:18,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118999134] [2024-12-05 09:37:18,136 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:37:18,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:37:18,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:37:18,137 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:37:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 09:37:18,276 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:37:18,276 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:37:18,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-05 09:37:18,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:37:19,018 INFO L349 Elim1Store]: treesize reduction 78, result has 60.0 percent of original size [2024-12-05 09:37:19,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 167 [2024-12-05 09:38:05,551 WARN L286 SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 624 DAG size of output: 516 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 09:38:27,065 INFO L349 Elim1Store]: treesize reduction 680, result has 35.2 percent of original size [2024-12-05 09:38:27,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 10 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 104 case distinctions, treesize of input 7419 treesize of output 3772 [2024-12-05 09:45:39,342 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-05 09:45:39,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-12-05 09:45:39,343 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-05 09:45:39,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 09:45:39,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-05 09:45:39,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-12-05 09:45:39,550 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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/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 [2024-12-05 09:45:39,554 INFO L158 Benchmark]: Toolchain (without parser) took 521468.16ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 116.3MB in the beginning and 636.8MB in the end (delta: -520.5MB). Peak memory consumption was 510.3MB. Max. memory is 16.1GB. [2024-12-05 09:45:39,555 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:45:39,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 103.5MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 09:45:39,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.63ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:45:39,555 INFO L158 Benchmark]: Boogie Preprocessor took 29.36ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 99.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:45:39,556 INFO L158 Benchmark]: RCFGBuilder took 785.23ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 81.8MB in the end (delta: 18.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-12-05 09:45:39,556 INFO L158 Benchmark]: TraceAbstraction took 520413.03ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 81.2MB in the beginning and 636.8MB in the end (delta: -555.6MB). Peak memory consumption was 479.3MB. Max. memory is 16.1GB. [2024-12-05 09:45:39,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 103.5MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.63ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.36ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 99.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 785.23ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 81.8MB in the end (delta: 18.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * TraceAbstraction took 520413.03ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 81.2MB in the beginning and 636.8MB in the end (delta: -555.6MB). Peak memory consumption was 479.3MB. 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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX --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 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:45:41,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:45:41,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-12-05 09:45:41,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:45:41,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:45:41,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:45:41,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:45:41,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:45:41,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:45:41,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:45:41,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:45:41,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:45:41,434 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:45:41,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 09:45:41,435 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:45:41,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:45:41,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-05 09:45:41,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:45:41,437 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:45:41,437 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_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX 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 -> 632917bb2a5e88c193ba7761220e89039206b92cb89d98172ae8e9ad69d27ca8 [2024-12-05 09:45:41,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:45:41,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:45:41,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:45:41,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:45:41,697 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:45:41,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-12-05 09:45:44,428 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/ed5682ba7/af5b0ad51cf34b0e8b4bc218f60f80ad/FLAG77f6ad19c [2024-12-05 09:45:44,614 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:45:44,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2024-12-05 09:45:44,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/ed5682ba7/af5b0ad51cf34b0e8b4bc218f60f80ad/FLAG77f6ad19c [2024-12-05 09:45:44,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/data/ed5682ba7/af5b0ad51cf34b0e8b4bc218f60f80ad [2024-12-05 09:45:44,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:45:44,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:45:44,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:45:44,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:45:44,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:45:44,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639ca652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44, skipping insertion in model container [2024-12-05 09:45:44,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:45:44,790 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_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2854,2867] [2024-12-05 09:45:44,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:45:44,810 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:45:44,832 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_c9336a07-2f54-41de-aaa4-94b090f5f825/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2854,2867] [2024-12-05 09:45:44,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:45:44,852 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:45:44,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44 WrapperNode [2024-12-05 09:45:44,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:45:44,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:45:44,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:45:44,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:45:44,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,890 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 211 [2024-12-05 09:45:44,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:45:44,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:45:44,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:45:44,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:45:44,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,912 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:45:44,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:45:44,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:45:44,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:45:44,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (1/1) ... [2024-12-05 09:45:44,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:45:44,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:44,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:45:44,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-05 09:45:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-05 09:45:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-05 09:45:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-05 09:45:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 09:45:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:45:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:45:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-05 09:45:44,976 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:45:45,066 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:45:45,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:45:45,509 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:45:45,509 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:45:45,828 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:45:45,828 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-05 09:45:45,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:45:45 BoogieIcfgContainer [2024-12-05 09:45:45,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:45:45,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:45:45,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:45:45,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:45:45,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:45:44" (1/3) ... [2024-12-05 09:45:45,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c044922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:45:45, skipping insertion in model container [2024-12-05 09:45:45,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:45:44" (2/3) ... [2024-12-05 09:45:45,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c044922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:45:45, skipping insertion in model container [2024-12-05 09:45:45,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:45:45" (3/3) ... [2024-12-05 09:45:45,838 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-12-05 09:45:45,854 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:45:45,855 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-min.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-05 09:45:45,855 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:45:45,912 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-05 09:45:45,957 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:45:45,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:45:45,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:45,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:45:45,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:45:46,041 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:45:46,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 09:45:46,066 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;@6a34da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:45:46,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-05 09:45:48,930 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)] === [2024-12-05 09:45:48,931 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:48,931 INFO L139 ounterexampleChecker]: Examining path program with hash -1322938045, occurence #1 [2024-12-05 09:45:48,931 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:45:48,931 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:48,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1477634701, now seen corresponding path program 1 times [2024-12-05 09:45:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:48,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935577169] [2024-12-05 09:45:48,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:45:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:48,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:48,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:48,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 09:45:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:45:49,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 09:45:49,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:45:49,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:45:49,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:49,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935577169] [2024-12-05 09:45:49,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935577169] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:45:49,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:45:49,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 09:45:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680398419] [2024-12-05 09:45:49,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:45:49,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:45:49,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:49,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:45:49,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:45:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:49,266 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:49,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-12-05 09:45:49,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:49,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:49,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 09:45:49,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:49,676 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)] === [2024-12-05 09:45:49,676 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:49,676 INFO L139 ounterexampleChecker]: Examining path program with hash 177006061, occurence #1 [2024-12-05 09:45:49,676 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:45:49,676 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:49,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:49,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1923767102, now seen corresponding path program 1 times [2024-12-05 09:45:49,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:49,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193998433] [2024-12-05 09:45:49,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:45:49,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:49,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:49,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:49,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 09:45:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:45:49,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:45:49,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:45:49,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:45:49,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:49,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193998433] [2024-12-05 09:45:49,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193998433] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:45:49,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:45:49,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 09:45:49,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574368283] [2024-12-05 09:45:49,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:45:49,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:45:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:49,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 09:45:49,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 09:45:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:49,805 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:49,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:45:49,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:49,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:49,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 09:45:50,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:50,140 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)] === [2024-12-05 09:45:50,140 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:50,140 INFO L139 ounterexampleChecker]: Examining path program with hash 177006061, occurence #2 [2024-12-05 09:45:50,140 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:45:50,140 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:45:50,141 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,141 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-05 09:45:50,141 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,141 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-05 09:45:50,141 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,141 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:45:50,155 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,155 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-12-05 09:45:50,155 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,155 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-12-05 09:45:50,155 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,155 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:45:50,155 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,156 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-05 09:45:50,156 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,156 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:45:50,156 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:50,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash 49771180, now seen corresponding path program 1 times [2024-12-05 09:45:50,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:50,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228407003] [2024-12-05 09:45:50,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:45:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:50,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:50,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:50,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 09:45:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:45:50,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 09:45:50,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:45:50,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:45:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:45:50,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:50,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228407003] [2024-12-05 09:45:50,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228407003] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:45:50,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:45:50,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-12-05 09:45:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786486209] [2024-12-05 09:45:50,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:45:50,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 09:45:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:50,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 09:45:50,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-05 09:45:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:50,412 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:50,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-12-05 09:45:50,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:50,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:50,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:50,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 09:45:50,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:50,978 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)] === [2024-12-05 09:45:50,978 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:50,978 INFO L139 ounterexampleChecker]: Examining path program with hash 177006061, occurence #3 [2024-12-05 09:45:50,978 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:45:50,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:45:50,978 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:45:50,978 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:45:50,978 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:45:50,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:45:50,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:45:50,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-05 09:45:50,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:45:50,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-05 09:45:50,979 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:45:50,979 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:45:50,979 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:50,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2031826050, now seen corresponding path program 1 times [2024-12-05 09:45:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:50,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939292850] [2024-12-05 09:45:50,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:45:50,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:50,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:50,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:50,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 09:45:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:45:51,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 09:45:51,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-05 09:45:51,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:45:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-05 09:45:51,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:51,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939292850] [2024-12-05 09:45:51,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939292850] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:45:51,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:45:51,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-05 09:45:51,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104312500] [2024-12-05 09:45:51,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:45:51,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-05 09:45:51,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:51,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-05 09:45:51,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-05 09:45:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:51,367 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:51,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 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) [2024-12-05 09:45:51,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:51,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:51,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:51,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:52,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 09:45:53,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:53,048 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)] === [2024-12-05 09:45:53,048 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:53,048 INFO L139 ounterexampleChecker]: Examining path program with hash 1301615078, occurence #1 [2024-12-05 09:45:53,048 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:45:53,048 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:53,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -523695667, now seen corresponding path program 1 times [2024-12-05 09:45:53,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:53,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845725253] [2024-12-05 09:45:53,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:45:53,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:53,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:53,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:53,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 09:45:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:45:53,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 09:45:53,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-05 09:45:53,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:45:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-05 09:45:53,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:53,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845725253] [2024-12-05 09:45:53,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845725253] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:45:53,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:45:53,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-12-05 09:45:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793028207] [2024-12-05 09:45:53,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:45:53,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-05 09:45:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:53,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-05 09:45:53,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-05 09:45:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:53,951 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:53,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 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) [2024-12-05 09:45:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:55,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:45:55,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 09:45:55,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:55,541 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)] === [2024-12-05 09:45:55,541 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:55,541 INFO L139 ounterexampleChecker]: Examining path program with hash -1493408112, occurence #1 [2024-12-05 09:45:55,541 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:45:55,541 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:55,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash -990667096, now seen corresponding path program 2 times [2024-12-05 09:45:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465779701] [2024-12-05 09:45:55,542 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:45:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:55,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:55,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 09:45:55,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:45:55,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:45:55,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 09:45:55,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:45:55,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:45:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-05 09:45:56,174 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465779701] [2024-12-05 09:45:56,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465779701] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:45:56,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:45:56,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-12-05 09:45:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991113427] [2024-12-05 09:45:56,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:45:56,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-05 09:45:56,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:56,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-05 09:45:56,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-05 09:45:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:56,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:56,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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) [2024-12-05 09:45:56,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:56,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:56,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:56,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:56,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:45:56,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:45:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:45:58,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 09:45:58,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:58,686 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)] === [2024-12-05 09:45:58,686 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:45:58,686 INFO L139 ounterexampleChecker]: Examining path program with hash -1764509447, occurence #1 [2024-12-05 09:45:58,686 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:45:58,686 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:45:58,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:45:58,687 INFO L85 PathProgramCache]: Analyzing trace with hash -22254706, now seen corresponding path program 3 times [2024-12-05 09:45:58,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:45:58,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2063693955] [2024-12-05 09:45:58,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:45:58,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:45:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:45:58,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:45:58,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 09:45:59,057 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 09:45:59,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:45:59,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 09:45:59,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:45:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-05 09:45:59,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:45:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-05 09:45:59,835 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:45:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063693955] [2024-12-05 09:45:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063693955] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:45:59,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:45:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-12-05 09:45:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926100482] [2024-12-05 09:45:59,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:45:59,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-05 09:45:59,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:45:59,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-05 09:45:59,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-12-05 09:45:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:45:59,837 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:45:59,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 17 states have internal predecessors, (93), 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) [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:45:59,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-05 09:46:01,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 09:46:01,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:01,788 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)] === [2024-12-05 09:46:01,788 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:46:01,788 INFO L139 ounterexampleChecker]: Examining path program with hash -1493408112, occurence #2 [2024-12-05 09:46:01,788 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:46:01,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:46:01,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-05 09:46:01,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-05 09:46:01,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-05 09:46:01,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:46:01,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:46:01,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 09:46:01,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-05 09:46:01,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-12-05 09:46:01,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:01,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-12-05 09:46:01,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:01,789 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:46:01,789 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:46:01,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:46:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash -289271474, now seen corresponding path program 4 times [2024-12-05 09:46:01,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:46:01,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943958040] [2024-12-05 09:46:01,790 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 09:46:01,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:01,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:46:01,792 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:46:01,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-05 09:46:05,581 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 09:46:05,581 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:46:05,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 09:46:05,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:46:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-05 09:46:05,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:46:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-05 09:46:06,329 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:46:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943958040] [2024-12-05 09:46:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943958040] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:46:06,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:46:06,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-12-05 09:46:06,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862307241] [2024-12-05 09:46:06,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:46:06,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-05 09:46:06,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:46:06,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-05 09:46:06,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2024-12-05 09:46:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:06,331 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:46:06,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.142857142857143) internal successors, (87), 21 states have internal predecessors, (87), 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) [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-12-05 09:46:06,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:46:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:46:10,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-05 09:46:10,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:10,518 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)] === [2024-12-05 09:46:10,518 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:46:10,518 INFO L139 ounterexampleChecker]: Examining path program with hash -1493408112, occurence #3 [2024-12-05 09:46:10,518 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:46:10,518 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-12-05 09:46:10,518 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-05 09:46:10,518 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-05 09:46:10,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:46:10,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:46:10,518 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:10,518 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-12-05 09:46:10,518 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-12-05 09:46:10,519 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2024-12-05 09:46:10,519 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2024-12-05 09:46:10,519 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:10,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-12-05 09:46:10,519 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:10,519 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:46:10,519 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:46:10,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:46:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1774551689, now seen corresponding path program 5 times [2024-12-05 09:46:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:46:10,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305699622] [2024-12-05 09:46:10,520 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 09:46:10,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:10,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:46:10,522 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:46:10,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-05 09:46:44,247 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-05 09:46:44,248 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:46:44,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-05 09:46:44,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:46:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-05 09:46:44,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:46:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-05 09:46:45,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:46:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305699622] [2024-12-05 09:46:45,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305699622] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:46:45,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:46:45,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-12-05 09:46:45,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314980503] [2024-12-05 09:46:45,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:46:45,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-05 09:46:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:46:45,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-05 09:46:45,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2024-12-05 09:46:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:45,597 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:46:45,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 25 states have internal predecessors, (109), 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) [2024-12-05 09:46:45,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:45,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:46:45,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:46:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:46:50,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-05 09:46:50,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:50,631 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)] === [2024-12-05 09:46:50,632 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:46:50,632 INFO L139 ounterexampleChecker]: Examining path program with hash -1493408112, occurence #4 [2024-12-05 09:46:50,632 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:46:50,632 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:46:50,632 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-05 09:46:50,632 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,632 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-12-05 09:46:50,632 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2024-12-05 09:46:50,633 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:46:50,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-12-05 09:46:50,633 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:46:50,633 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:46:50,633 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:46:50,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:46:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash -282956806, now seen corresponding path program 6 times [2024-12-05 09:46:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:46:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844490477] [2024-12-05 09:46:50,633 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-05 09:46:50,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:46:50,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:46:50,635 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:46:50,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-05 09:46:53,009 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-12-05 09:46:53,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:46:53,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-05 09:46:53,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:46:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 09:46:54,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:46:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 6 proven. 79 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-05 09:46:57,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:46:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844490477] [2024-12-05 09:46:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844490477] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:46:57,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:46:57,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28] total 51 [2024-12-05 09:46:57,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470324279] [2024-12-05 09:46:57,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:46:57,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-05 09:46:57,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:46:57,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-05 09:46:57,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=2002, Unknown=0, NotChecked=0, Total=2550 [2024-12-05 09:46:57,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:46:57,890 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:46:57,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.6470588235294117) internal successors, (135), 51 states have internal predecessors, (135), 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) [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:46:57,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:46:57,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:46:57,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:46:57,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:47:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:47:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:47:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:47:11,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-05 09:47:11,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-05 09:47:12,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:12,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:47:12,101 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:47:12,102 INFO L139 ounterexampleChecker]: Examining path program with hash 1430979658, occurence #1 [2024-12-05 09:47:12,102 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:47:12,102 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:47:12,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:47:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash 8063810, now seen corresponding path program 1 times [2024-12-05 09:47:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:47:12,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153569811] [2024-12-05 09:47:12,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:47:12,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:12,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:47:12,105 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:47:12,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-05 09:47:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:47:12,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 09:47:12,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:47:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-05 09:47:12,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:47:12,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:47:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153569811] [2024-12-05 09:47:12,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153569811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:47:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:47:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 09:47:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036849561] [2024-12-05 09:47:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:47:12,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 09:47:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:47:12,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 09:47:12,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-05 09:47:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:47:12,345 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:47:12,345 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) [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:47:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-12-05 09:47:12,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:47:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-05 09:47:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:13,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-05 09:47:13,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:13,525 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:47:13,526 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:47:13,526 INFO L139 ounterexampleChecker]: Examining path program with hash -1785926676, occurence #1 [2024-12-05 09:47:13,526 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 09:47:13,526 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:47:13,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:47:13,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1555591843, now seen corresponding path program 2 times [2024-12-05 09:47:13,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:47:13,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037624575] [2024-12-05 09:47:13,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:47:13,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:13,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:47:13,528 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:47:13,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-05 09:47:13,743 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:47:13,743 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:47:13,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-05 09:47:13,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:47:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-05 09:47:14,860 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:47:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-12-05 09:47:17,386 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:47:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037624575] [2024-12-05 09:47:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037624575] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:47:17,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:47:17,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 45 [2024-12-05 09:47:17,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049574012] [2024-12-05 09:47:17,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:47:17,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-05 09:47:17,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:47:17,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-05 09:47:17,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1523, Unknown=0, NotChecked=0, Total=1980 [2024-12-05 09:47:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:47:17,388 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:47:17,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.422222222222222) internal successors, (154), 45 states have internal predecessors, (154), 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) [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-05 09:47:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:47:33,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-05 09:47:33,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-05 09:47:33,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:33,564 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-05 09:47:33,564 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 09:47:33,565 INFO L139 ounterexampleChecker]: Examining path program with hash -1493408112, occurence #5 [2024-12-05 09:47:33,565 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-05 09:47:33,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-05 09:47:33,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-12-05 09:47:33,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-12-05 09:47:33,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-12-05 09:47:33,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-05 09:47:33,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-12-05 09:47:33,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-12-05 09:47:33,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-12-05 09:47:33,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-12-05 09:47:33,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-12-05 09:47:33,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2024-12-05 09:47:33,566 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 09:47:33,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-12-05 09:47:33,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 09:47:33,566 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 09:47:33,566 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 09:47:33,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:47:33,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1948917728, now seen corresponding path program 7 times [2024-12-05 09:47:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:47:33,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681873985] [2024-12-05 09:47:33,567 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-05 09:47:33,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:47:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:47:33,569 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:47:33,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9336a07-2f54-41de-aaa4-94b090f5f825/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process