./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:22:18,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:22:18,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:22:18,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:22:18,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:22:18,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:22:18,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:22:18,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:22:18,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:22:18,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:22:18,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:22:18,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:22:18,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:22:18,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:22:18,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:22:18,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:22:18,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:22:18,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:22:18,570 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:22:18,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:22:18,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:22:18,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:22:18,571 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:22:18,571 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:22:18,571 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_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2024-11-23 11:22:18,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:22:18,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:22:18,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:22:18,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:22:18,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:22:18,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-23 11:22:22,020 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/data/d1a588fc4/d1fdb63f588445dabff284686de7bd44/FLAG43595485a [2024-11-23 11:22:22,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:22:22,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-23 11:22:22,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/data/d1a588fc4/d1fdb63f588445dabff284686de7bd44/FLAG43595485a [2024-11-23 11:22:22,311 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/data/d1a588fc4/d1fdb63f588445dabff284686de7bd44 [2024-11-23 11:22:22,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:22:22,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:22:22,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:22:22,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:22:22,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:22:22,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53172f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22, skipping insertion in model container [2024-11-23 11:22:22,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:22:22,568 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_02f66999-0c9a-4523-bdb3-435a816b1939/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2218,2231] [2024-11-23 11:22:22,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:22:22,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:22:22,621 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_02f66999-0c9a-4523-bdb3-435a816b1939/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2218,2231] [2024-11-23 11:22:22,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:22:22,646 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:22:22,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22 WrapperNode [2024-11-23 11:22:22,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:22:22,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:22:22,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:22:22,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:22:22,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,691 INFO L138 Inliner]: procedures = 20, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2024-11-23 11:22:22,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:22:22,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:22:22,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:22:22,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:22:22,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:22:22,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:22:22,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:22:22,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:22:22,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (1/1) ... [2024-11-23 11:22:22,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:22:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:22,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:22:22,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:22:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:22:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:22:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-23 11:22:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:22:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:22:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:22:22,797 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:22:22,916 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:22:22,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:22:23,237 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:22:23,237 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:22:23,371 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:22:23,372 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 11:22:23,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:23 BoogieIcfgContainer [2024-11-23 11:22:23,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:22:23,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:22:23,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:22:23,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:22:23,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:22:22" (1/3) ... [2024-11-23 11:22:23,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7873a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:23, skipping insertion in model container [2024-11-23 11:22:23,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22" (2/3) ... [2024-11-23 11:22:23,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7873a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:23, skipping insertion in model container [2024-11-23 11:22:23,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:23" (3/3) ... [2024-11-23 11:22:23,384 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-11-23 11:22:23,401 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:22:23,403 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-determinism.wvr.c that has 5 procedures, 37 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-23 11:22:23,403 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:22:23,474 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 11:22:23,542 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:22:23,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:22:23,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:23,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:22:23,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:22:23,654 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:22:23,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:22:23,685 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;@5f03c7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:22:23,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 11:22:24,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:24,676 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:24,678 INFO L139 ounterexampleChecker]: Examining path program with hash -2046510546, occurence #1 [2024-11-23 11:22:24,678 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:24,679 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:24,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1131620142, now seen corresponding path program 1 times [2024-11-23 11:22:24,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:24,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583563971] [2024-11-23 11:22:24,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:22:24,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:22:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:22:25,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:25,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583563971] [2024-11-23 11:22:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583563971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:22:25,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:22:25,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 11:22:25,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579622679] [2024-11-23 11:22:25,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:22:25,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 11:22:25,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:25,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 11:22:25,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-23 11:22:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:25,598 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:25,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:25,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:26,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:22:26,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:26,031 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:26,031 INFO L139 ounterexampleChecker]: Examining path program with hash 624317912, occurence #1 [2024-11-23 11:22:26,032 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:26,032 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:26,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2051312533, now seen corresponding path program 2 times [2024-11-23 11:22:26,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874685659] [2024-11-23 11:22:26,033 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:22:26,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:26,114 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:22:26,114 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 11:22:26,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:26,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874685659] [2024-11-23 11:22:26,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874685659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:26,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730157808] [2024-11-23 11:22:26,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:22:26,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:26,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:26,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:26,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:22:27,083 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:22:27,084 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:27,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:22:27,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:22:27,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:22:27,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730157808] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:27,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:22:27,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16, 11] total 30 [2024-11-23 11:22:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191042592] [2024-11-23 11:22:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:22:27,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:22:27,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:27,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:22:27,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2024-11-23 11:22:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:27,907 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:27,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2024-11-23 11:22:27,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:27,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:28,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:22:28,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:28,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:28,529 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:28,529 INFO L139 ounterexampleChecker]: Examining path program with hash 1069727514, occurence #1 [2024-11-23 11:22:28,529 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:28,529 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:28,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 195181148, now seen corresponding path program 3 times [2024-11-23 11:22:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:28,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128822780] [2024-11-23 11:22:28,530 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:22:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:28,562 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:22:28,562 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:22:28,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:28,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128822780] [2024-11-23 11:22:28,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128822780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:28,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991316590] [2024-11-23 11:22:28,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:22:28,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:28,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:28,897 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:28,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:22:29,005 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:22:29,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:29,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:22:29,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:22:29,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:22:29,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991316590] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:29,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:22:29,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 10] total 22 [2024-11-23 11:22:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464521828] [2024-11-23 11:22:29,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:22:29,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:22:29,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:29,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:22:29,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-11-23 11:22:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:29,575 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:29,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:29,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:29,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:29,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:29,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:29,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:29,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:29,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 11:22:30,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:30,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:30,085 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:30,085 INFO L139 ounterexampleChecker]: Examining path program with hash 1332412018, occurence #1 [2024-11-23 11:22:30,085 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:30,085 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:30,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:30,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1837014226, now seen corresponding path program 4 times [2024-11-23 11:22:30,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:30,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731310212] [2024-11-23 11:22:30,086 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:22:30,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:30,114 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:22:30,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:22:30,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731310212] [2024-11-23 11:22:30,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731310212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035684665] [2024-11-23 11:22:30,793 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:22:30,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:30,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:30,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:30,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:22:30,939 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:22:30,939 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:30,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 11:22:30,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:22:31,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 11:22:31,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035684665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:22:31,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:22:31,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 7] total 31 [2024-11-23 11:22:31,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767472546] [2024-11-23 11:22:31,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:22:31,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 11:22:31,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:31,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 11:22:31,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=796, Unknown=0, NotChecked=0, Total=930 [2024-11-23 11:22:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:31,671 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:31,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.290322580645161) internal successors, (164), 31 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:31,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:31,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:31,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:31,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:22:34,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 11:22:35,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:35,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:35,073 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:35,074 INFO L139 ounterexampleChecker]: Examining path program with hash 146956738, occurence #1 [2024-11-23 11:22:35,074 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:35,074 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:35,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash -491823347, now seen corresponding path program 5 times [2024-11-23 11:22:35,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:35,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433547764] [2024-11-23 11:22:35,075 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:22:35,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:35,148 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-11-23 11:22:35,148 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-23 11:22:35,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:35,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433547764] [2024-11-23 11:22:35,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433547764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:22:35,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:22:35,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 11:22:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653481885] [2024-11-23 11:22:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:22:35,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:22:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:35,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:22:35,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 11:22:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:35,544 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:35,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:35,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:35,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:35,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:35,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:22:35,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:22:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:35,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 11:22:35,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:35,740 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:35,741 INFO L139 ounterexampleChecker]: Examining path program with hash 481696979, occurence #1 [2024-11-23 11:22:35,741 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:35,741 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:35,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1860349916, now seen corresponding path program 6 times [2024-11-23 11:22:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718419641] [2024-11-23 11:22:35,742 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:22:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:35,787 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-23 11:22:35,788 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 64 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 11:22:36,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718419641] [2024-11-23 11:22:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718419641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258297447] [2024-11-23 11:22:36,213 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:22:36,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:36,217 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:36,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:22:36,342 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-23 11:22:36,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:36,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 11:22:36,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:22:37,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 41 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 11:22:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258297447] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:22:37,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:22:37,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 11] total 32 [2024-11-23 11:22:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743539010] [2024-11-23 11:22:37,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:22:37,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-23 11:22:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:37,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-23 11:22:37,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=785, Unknown=0, NotChecked=0, Total=992 [2024-11-23 11:22:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:37,364 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:37,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.4375) internal successors, (206), 32 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-11-23 11:22:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-23 11:22:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:39,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:22:39,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 11:22:39,375 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:39,375 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:39,376 INFO L139 ounterexampleChecker]: Examining path program with hash 468069341, occurence #1 [2024-11-23 11:22:39,376 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:39,376 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:39,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:39,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1993870642, now seen corresponding path program 7 times [2024-11-23 11:22:39,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:39,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080023186] [2024-11-23 11:22:39,376 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:22:39,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:22:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 184 proven. 56 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-23 11:22:40,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080023186] [2024-11-23 11:22:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080023186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835510708] [2024-11-23 11:22:40,077 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:22:40,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:40,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:40,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:40,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:22:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:22:40,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 11:22:40,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-23 11:22:40,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:22:40,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835510708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:22:40,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:22:40,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-23 11:22:40,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4053464] [2024-11-23 11:22:40,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:22:40,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:22:40,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:40,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:22:40,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:22:40,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:40,420 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:40,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:40,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:22:40,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 11:22:40,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 11:22:40,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:40,780 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:40,780 INFO L139 ounterexampleChecker]: Examining path program with hash -1814191123, occurence #1 [2024-11-23 11:22:40,780 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:40,780 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:40,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:40,780 INFO L85 PathProgramCache]: Analyzing trace with hash -234428993, now seen corresponding path program 8 times [2024-11-23 11:22:40,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:40,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781921841] [2024-11-23 11:22:40,781 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:22:40,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:40,822 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:22:40,822 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-23 11:22:41,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:41,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781921841] [2024-11-23 11:22:41,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781921841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:41,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620131852] [2024-11-23 11:22:41,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:22:41,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:41,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:41,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:41,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:22:41,280 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:22:41,281 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:41,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:22:41,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:22:41,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-23 11:22:42,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620131852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:22:42,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:22:42,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 19, 6] total 25 [2024-11-23 11:22:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432826261] [2024-11-23 11:22:42,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:22:42,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 11:22:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:42,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 11:22:42,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-23 11:22:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:42,269 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:42,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.28) internal successors, (157), 25 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:22:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:22:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:22:44,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:22:45,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:45,011 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:22:45,011 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:22:45,012 INFO L139 ounterexampleChecker]: Examining path program with hash 152862520, occurence #1 [2024-11-23 11:22:45,012 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:22:45,012 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:22:45,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:22:45,013 INFO L85 PathProgramCache]: Analyzing trace with hash 238737318, now seen corresponding path program 9 times [2024-11-23 11:22:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:22:45,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559087629] [2024-11-23 11:22:45,013 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:22:45,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:22:45,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-23 11:22:45,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 731 proven. 154 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-23 11:22:46,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:22:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559087629] [2024-11-23 11:22:46,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559087629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:22:46,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523033071] [2024-11-23 11:22:46,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:22:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:22:46,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:46,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:22:46,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:22:46,919 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-23 11:22:46,920 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:22:46,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-23 11:22:46,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:22:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 5 proven. 1198 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 11:22:49,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:22:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 5 proven. 331 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2024-11-23 11:22:49,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523033071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:22:49,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:22:49,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 49, 9] total 71 [2024-11-23 11:22:49,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174977385] [2024-11-23 11:22:49,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:22:49,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-23 11:22:49,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:22:49,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-23 11:22:49,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=4512, Unknown=0, NotChecked=0, Total=4970 [2024-11-23 11:22:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:22:49,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:22:49,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 6.295774647887324) internal successors, (447), 71 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:22:49,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:22:49,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:23:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:23:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2024-11-23 11:23:04,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 11:23:04,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:23:04,473 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 2 more)] === [2024-11-23 11:23:04,473 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:23:04,473 INFO L139 ounterexampleChecker]: Examining path program with hash -1060855442, occurence #1 [2024-11-23 11:23:04,473 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:23:04,473 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:23:04,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:23:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1803597735, now seen corresponding path program 10 times [2024-11-23 11:23:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:23:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549271174] [2024-11-23 11:23:04,474 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:23:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:23:04,834 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:23:04,834 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:23:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5122 backedges. 1624 proven. 136 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2024-11-23 11:23:08,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:23:08,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549271174] [2024-11-23 11:23:08,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549271174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:23:08,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474740440] [2024-11-23 11:23:08,404 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:23:08,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:23:08,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:23:08,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:23:08,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 11:23:08,677 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:23:08,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:23:08,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-23 11:23:08,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:23:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5122 backedges. 2 proven. 5109 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 11:23:12,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:23:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5122 backedges. 2 proven. 1739 refuted. 0 times theorem prover too weak. 3381 trivial. 0 not checked. [2024-11-23 11:23:13,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474740440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:23:13,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:23:13,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 77, 7] total 95 [2024-11-23 11:23:13,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768483678] [2024-11-23 11:23:13,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:23:13,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-11-23 11:23:13,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:23:13,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-11-23 11:23:13,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=8400, Unknown=0, NotChecked=0, Total=8930 [2024-11-23 11:23:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:23:13,162 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:23:13,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.294736842105263) internal successors, (598), 95 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:23:13,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2024-11-23 11:23:13,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:23:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 361 states. [2024-11-23 11:23:46,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 11:23:46,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 11:23:46,319 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 2 more)] === [2024-11-23 11:23:46,319 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:23:46,319 INFO L139 ounterexampleChecker]: Examining path program with hash 1739626726, occurence #1 [2024-11-23 11:23:46,319 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:23:46,319 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:23:46,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:23:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1017592761, now seen corresponding path program 11 times [2024-11-23 11:23:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:23:46,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079625143] [2024-11-23 11:23:46,320 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:23:46,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:23:46,887 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 44 check-sat command(s) [2024-11-23 11:23:46,887 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:23:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11212 backedges. 23 proven. 3011 refuted. 0 times theorem prover too weak. 8178 trivial. 0 not checked. [2024-11-23 11:23:51,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:23:51,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079625143] [2024-11-23 11:23:51,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079625143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:23:51,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967635403] [2024-11-23 11:23:51,639 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:23:51,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:23:51,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:23:51,641 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:23:51,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 11:23:52,187 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 44 check-sat command(s) [2024-11-23 11:23:52,187 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:23:52,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-23 11:23:52,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:23:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 11212 backedges. 1 proven. 11189 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:23:57,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:23:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 11212 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 10701 trivial. 0 not checked. [2024-11-23 11:23:58,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967635403] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:23:58,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:23:58,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17, 105] total 125 [2024-11-23 11:23:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387313002] [2024-11-23 11:23:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:23:58,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:23:58,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:23:58,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:23:58,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=14597, Unknown=0, NotChecked=0, Total=15500 [2024-11-23 11:23:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:23:58,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:23:58,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 361 states. [2024-11-23 11:23:58,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:23:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 361 states. [2024-11-23 11:23:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:23:59,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 11:23:59,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:23:59,198 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 2 more)] === [2024-11-23 11:23:59,198 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:23:59,199 INFO L139 ounterexampleChecker]: Examining path program with hash -1487359000, occurence #1 [2024-11-23 11:23:59,199 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:23:59,199 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:23:59,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:23:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1438122065, now seen corresponding path program 12 times [2024-11-23 11:23:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:23:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195849034] [2024-11-23 11:23:59,200 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:23:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:23:59,905 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 44 check-sat command(s) [2024-11-23 11:23:59,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:24:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 11215 backedges. 2597 proven. 662 refuted. 0 times theorem prover too weak. 7956 trivial. 0 not checked. [2024-11-23 11:24:05,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:24:05,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195849034] [2024-11-23 11:24:05,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195849034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:24:05,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52588847] [2024-11-23 11:24:05,000 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:24:05,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:24:05,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:24:05,006 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:24:05,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 11:24:05,510 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 44 check-sat command(s) [2024-11-23 11:24:05,510 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:24:05,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-11-23 11:24:05,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:24:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11215 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-23 11:24:10,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:24:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 11215 backedges. 127 proven. 383 refuted. 0 times theorem prover too weak. 10705 trivial. 0 not checked. [2024-11-23 11:24:11,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52588847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:24:11,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:24:11,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 104, 7] total 129 [2024-11-23 11:24:11,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061059009] [2024-11-23 11:24:11,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:24:12,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2024-11-23 11:24:12,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:24:12,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2024-11-23 11:24:12,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=885, Invalid=15627, Unknown=0, NotChecked=0, Total=16512 [2024-11-23 11:24:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:24:12,005 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:24:12,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 6.209302325581396) internal successors, (801), 129 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:24:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:24:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 361 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:12,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 362 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:24:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2024-11-23 11:24:57,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 11:24:58,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:24:58,052 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 2 more)] === [2024-11-23 11:24:58,052 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:24:58,052 INFO L139 ounterexampleChecker]: Examining path program with hash 1045577920, occurence #1 [2024-11-23 11:24:58,053 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:24:58,053 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:24:58,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:24:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash -379694778, now seen corresponding path program 13 times [2024-11-23 11:24:58,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:24:58,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628656879] [2024-11-23 11:24:58,053 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:24:58,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:24:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:25:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 15251 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 15151 trivial. 0 not checked. [2024-11-23 11:25:10,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:25:10,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628656879] [2024-11-23 11:25:10,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628656879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:25:10,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618765306] [2024-11-23 11:25:10,825 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:25:10,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:25:10,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:25:10,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:25:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 11:25:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:25:11,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 214 conjuncts are in the unsatisfiable core [2024-11-23 11:25:11,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:25:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15251 trivial. 0 not checked. [2024-11-23 11:25:12,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:25:12,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618765306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:25:12,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:25:12,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-23 11:25:12,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673749213] [2024-11-23 11:25:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:25:12,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:25:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:25:12,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:25:12,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:25:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:25:12,137 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:25:12,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 362 states. [2024-11-23 11:25:12,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 508 states. [2024-11-23 11:25:12,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 362 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2024-11-23 11:25:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:12,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 11:25:12,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 11:25:12,521 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:25:12,521 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:25:12,522 INFO L139 ounterexampleChecker]: Examining path program with hash 1462851761, occurence #1 [2024-11-23 11:25:12,522 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:25:12,522 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:25:12,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:25:12,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1828514345, now seen corresponding path program 14 times [2024-11-23 11:25:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:25:12,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515053361] [2024-11-23 11:25:12,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:25:12,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:25:12,838 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:25:12,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:25:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 15257 backedges. 7 proven. 1186 refuted. 0 times theorem prover too weak. 14064 trivial. 0 not checked. [2024-11-23 11:25:17,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:25:17,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515053361] [2024-11-23 11:25:17,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515053361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:25:17,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302372092] [2024-11-23 11:25:17,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:25:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:25:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:25:17,139 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:25:17,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 11:25:17,495 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:25:17,495 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:25:17,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-23 11:25:17,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:25:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 15257 backedges. 0 proven. 15250 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:25:23,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:25:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 15257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15257 trivial. 0 not checked. [2024-11-23 11:25:24,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302372092] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:25:24,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:25:24,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 111] total 125 [2024-11-23 11:25:24,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593651580] [2024-11-23 11:25:24,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:25:24,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:25:24,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:25:24,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:25:24,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=14960, Unknown=0, NotChecked=0, Total=15500 [2024-11-23 11:25:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:25:24,152 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:25:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:24,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 362 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 508 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:24,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:25:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:25:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:25:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:25:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:25:35,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-23 11:25:35,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 11:25:35,724 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:25:35,724 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:25:35,725 INFO L139 ounterexampleChecker]: Examining path program with hash 900580899, occurence #1 [2024-11-23 11:25:35,725 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:25:35,725 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:25:35,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:25:35,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1228749417, now seen corresponding path program 15 times [2024-11-23 11:25:35,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:25:35,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497368979] [2024-11-23 11:25:35,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:25:35,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:25:38,227 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 60 check-sat command(s) [2024-11-23 11:25:38,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:25:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 21964 backedges. 115 proven. 1316 refuted. 0 times theorem prover too weak. 20533 trivial. 0 not checked. [2024-11-23 11:25:50,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:25:50,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497368979] [2024-11-23 11:25:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497368979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:25:50,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225499190] [2024-11-23 11:25:50,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:25:50,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:25:50,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:25:50,891 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:25:50,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 11:25:52,032 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 60 check-sat command(s) [2024-11-23 11:25:52,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:25:52,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 162 conjuncts are in the unsatisfiable core [2024-11-23 11:25:52,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:26:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21964 backedges. 1 proven. 21941 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 11:26:02,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:26:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21964 backedges. 6831 proven. 12 refuted. 0 times theorem prover too weak. 15121 trivial. 0 not checked. [2024-11-23 11:26:04,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225499190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:26:04,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:26:04,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 163, 14] total 187 [2024-11-23 11:26:04,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24086576] [2024-11-23 11:26:04,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:26:04,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 187 states [2024-11-23 11:26:04,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:26:04,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 187 interpolants. [2024-11-23 11:26:04,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2476, Invalid=32306, Unknown=0, NotChecked=0, Total=34782 [2024-11-23 11:26:04,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:26:04,431 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:26:04,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 187 states, 187 states have (on average 6.224598930481283) internal successors, (1164), 187 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:26:04,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:26:04,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:27:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:27:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:27:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:02,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:27:02,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-23 11:27:02,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:27:02,704 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:27:02,704 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:27:02,705 INFO L139 ounterexampleChecker]: Examining path program with hash 1646159383, occurence #1 [2024-11-23 11:27:02,705 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:27:02,705 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:27:02,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:27:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1119685318, now seen corresponding path program 16 times [2024-11-23 11:27:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:27:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019976446] [2024-11-23 11:27:02,707 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:27:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:27:04,466 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:27:04,466 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:27:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 23334 backedges. 6311 proven. 976 refuted. 0 times theorem prover too weak. 16047 trivial. 0 not checked. [2024-11-23 11:27:24,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:27:24,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019976446] [2024-11-23 11:27:24,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019976446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:27:24,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042853686] [2024-11-23 11:27:24,343 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:27:24,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:27:24,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:27:24,345 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:27:24,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 11:27:24,883 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:27:24,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:27:24,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 156 conjuncts are in the unsatisfiable core [2024-11-23 11:27:24,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:27:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 23334 backedges. 96 proven. 22181 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2024-11-23 11:27:34,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:27:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 23334 backedges. 96 proven. 1439 refuted. 0 times theorem prover too weak. 21799 trivial. 0 not checked. [2024-11-23 11:27:36,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042853686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:27:36,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:27:36,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 157, 8] total 177 [2024-11-23 11:27:36,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415194024] [2024-11-23 11:27:36,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:27:36,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 177 states [2024-11-23 11:27:36,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:27:36,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2024-11-23 11:27:36,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=30206, Unknown=0, NotChecked=0, Total=31152 [2024-11-23 11:27:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:27:36,535 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:27:36,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 177 states, 177 states have (on average 6.203389830508475) internal successors, (1098), 177 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:27:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:28:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:28:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 479 states. [2024-11-23 11:28:50,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 11:28:50,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 11:28:50,592 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:28:50,592 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:28:50,592 INFO L139 ounterexampleChecker]: Examining path program with hash -1494417827, occurence #1 [2024-11-23 11:28:50,592 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:28:50,593 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:28:50,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:28:50,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1386431984, now seen corresponding path program 17 times [2024-11-23 11:28:50,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:28:50,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606481974] [2024-11-23 11:28:50,594 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:28:50,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:28:51,306 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2024-11-23 11:28:51,306 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:30:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 35189 backedges. 138 proven. 6219 refuted. 0 times theorem prover too weak. 28832 trivial. 0 not checked. [2024-11-23 11:30:21,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:30:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606481974] [2024-11-23 11:30:21,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606481974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:30:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127593867] [2024-11-23 11:30:21,242 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:30:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:30:21,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:30:21,246 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:30:21,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 11:30:22,328 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2024-11-23 11:30:22,329 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:30:22,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 905 conjuncts are in the unsatisfiable core [2024-11-23 11:30:22,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:30:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 35189 backedges. 6383 proven. 0 refuted. 0 times theorem prover too weak. 28806 trivial. 0 not checked. [2024-11-23 11:30:25,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:30:25,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127593867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:30:25,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:30:25,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-23 11:30:25,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460591394] [2024-11-23 11:30:25,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:30:25,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 11:30:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:30:25,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 11:30:25,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-23 11:30:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:30:25,438 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:30:25,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:30:25,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 479 states. [2024-11-23 11:30:25,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:30:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 526 states. [2024-11-23 11:30:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:30:34,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-23 11:30:34,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 11:30:34,987 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:30:34,988 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:30:34,988 INFO L139 ounterexampleChecker]: Examining path program with hash -382547419, occurence #1 [2024-11-23 11:30:34,989 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:30:34,989 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:30:34,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:30:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash -775687697, now seen corresponding path program 18 times [2024-11-23 11:30:34,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:30:34,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541570127] [2024-11-23 11:30:34,990 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:30:34,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:30:38,025 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 89 check-sat command(s) [2024-11-23 11:30:38,026 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 47490 backedges. 192 proven. 12443 refuted. 0 times theorem prover too weak. 34855 trivial. 0 not checked. [2024-11-23 11:31:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:31:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541570127] [2024-11-23 11:31:02,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541570127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:31:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054307217] [2024-11-23 11:31:02,809 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:31:02,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:31:02,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:31:02,811 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:31:02,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 11:31:04,554 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 89 check-sat command(s) [2024-11-23 11:31:04,554 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:31:04,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 3248 conjuncts, 206 conjuncts are in the unsatisfiable core [2024-11-23 11:31:04,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:31:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 47490 backedges. 3 proven. 47487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:31:21,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:31:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 47490 backedges. 11409 proven. 80 refuted. 0 times theorem prover too weak. 36001 trivial. 0 not checked. [2024-11-23 11:31:25,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054307217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:31:25,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:31:25,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 207, 21] total 241 [2024-11-23 11:31:25,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268462818] [2024-11-23 11:31:25,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:31:25,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 241 states [2024-11-23 11:31:25,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:31:25,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 241 interpolants. [2024-11-23 11:31:25,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1775, Invalid=56065, Unknown=0, NotChecked=0, Total=57840 [2024-11-23 11:31:25,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:31:25,271 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:31:25,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 241 states, 241 states have (on average 6.369294605809128) internal successors, (1535), 241 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:31:25,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:31:25,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:31:25,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:31:25,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 526 states. [2024-11-23 11:31:25,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:31:25,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-11-23 11:33:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 583 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 526 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 823 states. [2024-11-23 11:33:57,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-23 11:33:57,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f66999-0c9a-4523-bdb3-435a816b1939/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 11:33:57,921 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:33:57,921 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:57,921 INFO L139 ounterexampleChecker]: Examining path program with hash 1360644391, occurence #1 [2024-11-23 11:33:57,921 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:57,921 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:57,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash 763211310, now seen corresponding path program 19 times [2024-11-23 11:33:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:57,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88150244] [2024-11-23 11:33:57,923 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:33:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat