./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longest-1.i --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_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/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_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/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_160c3c32-15b2-4665-b00b-99041b1e3d79/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 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:32:37,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:32:37,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:32:37,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:32:37,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:32:37,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:32:37,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:32:37,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:32:37,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:32:37,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:32:37,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:32:37,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:32:37,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:32:37,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:32:37,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:32:37,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:32:37,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:32:37,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:32:37,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:32:37,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:32:37,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:32:37,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:32:37,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:32:37,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:32:37,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:32:37,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:32:37,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:32:37,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:32:37,572 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:32:37,572 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:32:37,572 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_160c3c32-15b2-4665-b00b-99041b1e3d79/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 -> 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 [2024-11-23 11:32:37,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:32:37,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:32:37,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:32:37,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:32:37,883 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:32:37,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/pthread/stack_longest-1.i [2024-11-23 11:32:40,923 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/data/f8101e2ab/c6e897c29b80495a953f4064cb615642/FLAG4ebd1cb80 [2024-11-23 11:32:41,328 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:32:41,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/sv-benchmarks/c/pthread/stack_longest-1.i [2024-11-23 11:32:41,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/data/f8101e2ab/c6e897c29b80495a953f4064cb615642/FLAG4ebd1cb80 [2024-11-23 11:32:41,512 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/data/f8101e2ab/c6e897c29b80495a953f4064cb615642 [2024-11-23 11:32:41,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:32:41,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:32:41,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:32:41,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:32:41,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:32:41,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:41" (1/1) ... [2024-11-23 11:32:41,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f9a240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:41, skipping insertion in model container [2024-11-23 11:32:41,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:41" (1/1) ... [2024-11-23 11:32:41,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:32:42,194 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_160c3c32-15b2-4665-b00b-99041b1e3d79/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2024-11-23 11:32:42,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:32:42,285 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:32:42,350 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_160c3c32-15b2-4665-b00b-99041b1e3d79/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2024-11-23 11:32:42,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:32:42,506 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:32:42,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42 WrapperNode [2024-11-23 11:32:42,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:32:42,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:32:42,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:32:42,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:32:42,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,659 INFO L138 Inliner]: procedures = 277, calls = 831, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 950 [2024-11-23 11:32:42,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:32:42,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:32:42,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:32:42,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:32:42,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:32:42,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:32:42,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:32:42,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:32:42,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2024-11-23 11:32:42,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:32:42,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:32:42,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:32:42,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:32:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-23 11:32:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-23 11:32:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-23 11:32:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-23 11:32:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:32:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:32:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:32:42,860 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 11:32:43,040 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:32:43,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:32:44,700 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:32:44,700 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:32:58,287 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:32:58,288 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 11:32:58,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:58 BoogieIcfgContainer [2024-11-23 11:32:58,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:32:58,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:32:58,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:32:58,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:32:58,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:32:41" (1/3) ... [2024-11-23 11:32:58,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4477cf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:58, skipping insertion in model container [2024-11-23 11:32:58,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (2/3) ... [2024-11-23 11:32:58,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4477cf1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:58, skipping insertion in model container [2024-11-23 11:32:58,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:58" (3/3) ... [2024-11-23 11:32:58,298 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2024-11-23 11:32:58,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:32:58,316 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longest-1.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 11:32:58,317 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:32:58,409 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 11:32:58,471 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:32:58,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:32:58,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:32:58,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:32:58,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:32:58,573 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:32:58,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2024-11-23 11:32:58,601 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;@33bd8d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:32:58,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 11:32:59,574 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:32:59,574 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:32:59,575 INFO L139 ounterexampleChecker]: Examining path program with hash 71430996, occurence #1 [2024-11-23 11:32:59,575 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:32:59,575 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:32:59,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:32:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash 996799187, now seen corresponding path program 1 times [2024-11-23 11:32:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:32:59,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871481697] [2024-11-23 11:32:59,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:32:59,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:32:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:00,655 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 11:33:00,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:00,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871481697] [2024-11-23 11:33:00,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871481697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:00,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:00,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:33:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520993253] [2024-11-23 11:33:00,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:00,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:33:00,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:00,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:33:00,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:33:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:00,689 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:00,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 11:33:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:01,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:01,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:33:01,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:01,412 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:01,416 INFO L139 ounterexampleChecker]: Examining path program with hash 969736183, occurence #1 [2024-11-23 11:33:01,416 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:01,416 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:01,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 609641068, now seen corresponding path program 1 times [2024-11-23 11:33:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211742702] [2024-11-23 11:33:01,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:01,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:01,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211742702] [2024-11-23 11:33:01,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211742702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:01,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:01,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:33:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592768844] [2024-11-23 11:33:01,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:01,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:33:01,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:01,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 11:33:01,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 11:33:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:01,893 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:01,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:01,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:01,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:02,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:33:02,010 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:02,010 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:02,010 INFO L139 ounterexampleChecker]: Examining path program with hash 1488491405, occurence #1 [2024-11-23 11:33:02,010 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:02,010 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:02,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1026383061, now seen corresponding path program 1 times [2024-11-23 11:33:02,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:02,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965614603] [2024-11-23 11:33:02,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:02,548 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 11:33:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965614603] [2024-11-23 11:33:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965614603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:02,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:33:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:33:02,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699140722] [2024-11-23 11:33:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:02,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:33:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:02,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 11:33:02,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 11:33:02,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:02,550 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:02,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:02,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:02,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:02,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 11:33:02,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:02,669 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:02,669 INFO L139 ounterexampleChecker]: Examining path program with hash -17888421, occurence #1 [2024-11-23 11:33:02,669 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:02,669 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:02,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1333995397, now seen corresponding path program 1 times [2024-11-23 11:33:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:02,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332101006] [2024-11-23 11:33:02,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:02,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:03,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:03,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332101006] [2024-11-23 11:33:03,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332101006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:03,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546713557] [2024-11-23 11:33:03,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:03,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:03,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:03,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:03,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:33:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:03,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:33:03,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:03,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:04,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546713557] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:04,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:04,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-23 11:33:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894564611] [2024-11-23 11:33:04,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:04,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 11:33:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:04,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 11:33:04,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 11:33:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:04,369 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:04,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:04,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:33:04,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:04,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:04,989 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:04,990 INFO L139 ounterexampleChecker]: Examining path program with hash -1380530385, occurence #1 [2024-11-23 11:33:04,990 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:04,990 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:04,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1823965474, now seen corresponding path program 2 times [2024-11-23 11:33:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:04,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306345521] [2024-11-23 11:33:04,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:05,160 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:05,160 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:33:07,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:07,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306345521] [2024-11-23 11:33:07,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306345521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:07,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036537020] [2024-11-23 11:33:07,513 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:07,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:07,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:07,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:07,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:33:08,073 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:08,073 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:08,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 11:33:08,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:08,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:08,178 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 11:33:08,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:33:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036537020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:33:08,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:33:08,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2024-11-23 11:33:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436673496] [2024-11-23 11:33:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:33:08,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:33:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:08,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:33:08,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 11:33:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:08,180 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:08,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 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 11:33:08,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:08,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:08,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:08,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 11:33:08,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:08,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:08,543 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:08,543 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #1 [2024-11-23 11:33:08,544 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:33:08,544 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:08,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:08,544 INFO L85 PathProgramCache]: Analyzing trace with hash 579740853, now seen corresponding path program 1 times [2024-11-23 11:33:08,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:08,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673681363] [2024-11-23 11:33:08,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:08,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:10,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673681363] [2024-11-23 11:33:10,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673681363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:10,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76432500] [2024-11-23 11:33:10,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:33:10,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:10,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:10,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:33:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:33:10,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 11:33:10,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:10,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:10,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-23 11:33:10,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:11,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:11,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:12,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2024-11-23 11:33:12,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2024-11-23 11:33:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76432500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:12,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 20 [2024-11-23 11:33:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644973691] [2024-11-23 11:33:12,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:12,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 11:33:12,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:12,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 11:33:12,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2024-11-23 11:33:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:12,295 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:12,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 20 states have internal predecessors, (117), 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 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:12,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:12,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 11:33:13,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 11:33:13,107 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:13,107 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:13,108 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #2 [2024-11-23 11:33:13,108 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:13,108 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-23 11:33:13,123 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:13,124 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,124 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:33:13,124 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:33:13,125 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-23 11:33:13,125 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-11-23 11:33:13,125 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:13,125 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:13,125 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:13,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash -829424272, now seen corresponding path program 2 times [2024-11-23 11:33:13,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:13,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539560161] [2024-11-23 11:33:13,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:13,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:13,330 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:13,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:15,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:15,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539560161] [2024-11-23 11:33:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539560161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469092796] [2024-11-23 11:33:15,875 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:33:15,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:15,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:15,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:33:16,546 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:33:16,546 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:16,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:33:16,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:16,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:16,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-23 11:33:16,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:16,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:16,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:16,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:17,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:17,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:17,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:17,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:19,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-23 11:33:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:19,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469092796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:19,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:19,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2024-11-23 11:33:19,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395450376] [2024-11-23 11:33:19,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:19,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-23 11:33:19,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:19,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-23 11:33:19,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=938, Unknown=0, NotChecked=0, Total=1406 [2024-11-23 11:33:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:19,258 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:19,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.921052631578948) internal successors, (225), 37 states have internal predecessors, (225), 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 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:19,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:33:20,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:33:20,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 11:33:20,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:20,880 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:20,880 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #3 [2024-11-23 11:33:20,880 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:20,880 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-23 11:33:20,880 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:20,880 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:20,880 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:20,880 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,881 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:33:20,881 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-23 11:33:20,882 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,882 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-11-23 11:33:20,883 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,883 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-23 11:33:20,883 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-11-23 11:33:20,891 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-11-23 11:33:20,891 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,891 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-11-23 11:33:20,891 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:20,891 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:20,891 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:20,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1276713808, now seen corresponding path program 3 times [2024-11-23 11:33:20,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:20,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441936068] [2024-11-23 11:33:20,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:33:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:23,385 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-23 11:33:23,385 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441936068] [2024-11-23 11:33:29,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441936068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338206614] [2024-11-23 11:33:29,099 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:33:29,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:29,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:29,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:33:33,595 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-23 11:33:33,595 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:33,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 11:33:33,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:33,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:33,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-23 11:33:33,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:33,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:33,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:33,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:34,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:33:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:35,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338206614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:33:35,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:33:35,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 22] total 65 [2024-11-23 11:33:35,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376424363] [2024-11-23 11:33:35,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:33:35,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-23 11:33:35,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:33:36,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-23 11:33:36,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2024-11-23 11:33:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:36,010 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:33:36,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.393939393939394) internal successors, (422), 65 states have internal predecessors, (422), 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 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:33:36,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:33:40,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:33:41,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 11:33:41,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-23 11:33:41,159 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:33:41,159 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:33:41,159 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #4 [2024-11-23 11:33:41,160 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-23 11:33:41,160 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:33:41,160 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:33:41,160 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:33:41,160 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:33:41,160 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:33:41,160 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-23 11:33:41,160 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-11-23 11:33:41,161 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-11-23 11:33:41,162 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,162 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-11-23 11:33:41,163 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,163 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2024-11-23 11:33:41,163 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,163 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2024-11-23 11:33:41,167 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-11-23 11:33:41,168 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,168 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2024-11-23 11:33:41,169 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:33:41,169 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:33:41,169 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:33:41,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:33:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1206214896, now seen corresponding path program 4 times [2024-11-23 11:33:41,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:33:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742863796] [2024-11-23 11:33:41,174 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:33:41,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:33:41,828 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:33:41,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:33:58,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:33:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742863796] [2024-11-23 11:33:58,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742863796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:33:58,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63298820] [2024-11-23 11:33:58,938 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:33:58,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:33:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:33:58,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:33:58,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:33:59,689 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:33:59,689 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:33:59,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-23 11:33:59,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:33:59,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:59,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-23 11:33:59,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:59,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:33:59,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:00,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:01,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:02,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:02,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-23 11:34:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:02,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:34:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:34:05,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63298820] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:34:05,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:34:05,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 44, 43] total 136 [2024-11-23 11:34:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076279001] [2024-11-23 11:34:05,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:34:05,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2024-11-23 11:34:05,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:34:05,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2024-11-23 11:34:05,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5741, Invalid=12891, Unknown=0, NotChecked=0, Total=18632 [2024-11-23 11:34:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:05,013 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:34:05,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 6.211678832116788) internal successors, (851), 136 states have internal predecessors, (851), 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 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:34:05,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:34:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:34:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2024-11-23 11:34:25,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:34:26,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 11:34:26,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:34:26,003 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:34:26,003 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #5 [2024-11-23 11:34:26,003 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:34:26,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-23 11:34:26,003 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:26,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-23 11:34:26,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-11-23 11:34:26,004 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,005 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-11-23 11:34:26,005 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,006 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-11-23 11:34:26,006 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,007 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-11-23 11:34:26,007 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,008 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2024-11-23 11:34:26,008 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2024-11-23 11:34:26,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2024-11-23 11:34:26,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2024-11-23 11:34:26,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2024-11-23 11:34:26,012 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2024-11-23 11:34:26,012 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2024-11-23 11:34:26,012 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2024-11-23 11:34:26,012 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2024-11-23 11:34:26,012 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:34:26,012 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:34:26,012 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:34:26,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:34:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1273153168, now seen corresponding path program 5 times [2024-11-23 11:34:26,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:34:26,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036266383] [2024-11-23 11:34:26,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:34:26,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:34:32,857 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2024-11-23 11:34:32,858 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21255 backedges. 0 proven. 21255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:31,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:31,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036266383] [2024-11-23 11:35:31,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036266383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:31,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425693385] [2024-11-23 11:35:31,085 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:35:31,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:31,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:31,090 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:35:31,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160c3c32-15b2-4665-b00b-99041b1e3d79/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process