./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 08:17:12,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 08:17:12,944 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-05 08:17:12,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 08:17:12,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 08:17:12,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 08:17:12,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 08:17:12,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 08:17:12,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 08:17:12,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 08:17:12,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 08:17:12,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 08:17:12,969 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 08:17:12,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 08:17:12,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 08:17:12,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 08:17:12,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 08:17:12,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 08:17:12,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:17:12,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 08:17:12,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 08:17:12,972 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 08:17:12,972 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_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 [2024-12-05 08:17:13,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 08:17:13,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 08:17:13,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 08:17:13,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 08:17:13,181 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 08:17:13,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/pthread/stack_longest-1.i [2024-12-05 08:17:15,850 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/data/3457a790c/65674b01031a4ef49944918f99ef9b9c/FLAG4e5aed224 [2024-12-05 08:17:16,113 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 08:17:16,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/sv-benchmarks/c/pthread/stack_longest-1.i [2024-12-05 08:17:16,127 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/data/3457a790c/65674b01031a4ef49944918f99ef9b9c/FLAG4e5aed224 [2024-12-05 08:17:16,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/data/3457a790c/65674b01031a4ef49944918f99ef9b9c [2024-12-05 08:17:16,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 08:17:16,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 08:17:16,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 08:17:16,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 08:17:16,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 08:17:16,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:17:16" (1/1) ... [2024-12-05 08:17:16,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56128251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:16, skipping insertion in model container [2024-12-05 08:17:16,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:17:16" (1/1) ... [2024-12-05 08:17:16,459 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 08:17:16,850 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_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2024-12-05 08:17:16,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:17:16,911 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 08:17:16,952 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_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2024-12-05 08:17:16,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:17:17,054 INFO L204 MainTranslator]: Completed translation [2024-12-05 08:17:17,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17 WrapperNode [2024-12-05 08:17:17,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 08:17:17,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 08:17:17,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 08:17:17,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 08:17:17,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,131 INFO L138 Inliner]: procedures = 277, calls = 831, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 950 [2024-12-05 08:17:17,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 08:17:17,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 08:17:17,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 08:17:17,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 08:17:17,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 08:17:17,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 08:17:17,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 08:17:17,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 08:17:17,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (1/1) ... [2024-12-05 08:17:17,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:17:17,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:17,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 08:17:17,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 08:17:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-12-05 08:17:17,263 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-12-05 08:17:17,263 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 08:17:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 08:17:17,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 08:17:17,265 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 08:17:17,371 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 08:17:17,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 08:17:18,445 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 08:17:18,445 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 08:17:28,255 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 08:17:28,255 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 08:17:28,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:17:28 BoogieIcfgContainer [2024-12-05 08:17:28,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 08:17:28,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 08:17:28,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 08:17:28,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 08:17:28,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:17:16" (1/3) ... [2024-12-05 08:17:28,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5857e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:17:28, skipping insertion in model container [2024-12-05 08:17:28,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:17:17" (2/3) ... [2024-12-05 08:17:28,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5857e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:17:28, skipping insertion in model container [2024-12-05 08:17:28,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:17:28" (3/3) ... [2024-12-05 08:17:28,265 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2024-12-05 08:17:28,281 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 08:17:28,282 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. [2024-12-05 08:17:28,282 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 08:17:28,356 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-05 08:17:28,403 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:17:28,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 08:17:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:28,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 08:17:28,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 08:17:28,481 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:17:28,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2024-12-05 08:17:28,505 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;@1930c4b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:17:28,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-05 08:17:29,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:29,232 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:29,232 INFO L139 ounterexampleChecker]: Examining path program with hash 71430996, occurence #1 [2024-12-05 08:17:29,232 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:29,232 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:29,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 996799187, now seen corresponding path program 1 times [2024-12-05 08:17:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:29,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075370753] [2024-12-05 08:17:29,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:30,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:30,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075370753] [2024-12-05 08:17:30,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075370753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:17:30,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:17:30,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:17:30,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984048933] [2024-12-05 08:17:30,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:17:30,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 08:17:30,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:30,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 08:17:30,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-05 08:17:30,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:30,154 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:30,155 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) [2024-12-05 08:17:30,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:30,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 08:17:30,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:30,704 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:30,704 INFO L139 ounterexampleChecker]: Examining path program with hash 969736183, occurence #1 [2024-12-05 08:17:30,704 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:30,704 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:30,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:30,704 INFO L85 PathProgramCache]: Analyzing trace with hash 609641068, now seen corresponding path program 1 times [2024-12-05 08:17:30,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:30,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165509778] [2024-12-05 08:17:30,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:30,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:31,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:31,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165509778] [2024-12-05 08:17:31,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165509778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:17:31,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:17:31,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:17:31,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232137835] [2024-12-05 08:17:31,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:17:31,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:17:31,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:31,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:17:31,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:17:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:31,007 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:31,008 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) [2024-12-05 08:17:31,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:31,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:31,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-05 08:17:31,109 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:31,109 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:31,109 INFO L139 ounterexampleChecker]: Examining path program with hash 1488491405, occurence #1 [2024-12-05 08:17:31,109 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:31,109 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:31,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1026383061, now seen corresponding path program 1 times [2024-12-05 08:17:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100570516] [2024-12-05 08:17:31,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100570516] [2024-12-05 08:17:31,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100570516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:17:31,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:17:31,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:17:31,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21615179] [2024-12-05 08:17:31,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:17:31,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:17:31,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:31,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:17:31,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:17:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:31,465 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:31,465 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) [2024-12-05 08:17:31,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:31,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:31,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:31,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-05 08:17:31,550 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:31,551 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:31,551 INFO L139 ounterexampleChecker]: Examining path program with hash -17888421, occurence #1 [2024-12-05 08:17:31,551 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:31,551 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:31,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1333995397, now seen corresponding path program 1 times [2024-12-05 08:17:31,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:31,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414080735] [2024-12-05 08:17:31,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:31,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:32,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:32,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414080735] [2024-12-05 08:17:32,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414080735] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:32,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183567313] [2024-12-05 08:17:32,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:32,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:32,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:32,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:32,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 08:17:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:32,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 08:17:32,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:32,578 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 [2024-12-05 08:17:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:32,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:17:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:32,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183567313] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:17:32,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:17:32,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-12-05 08:17:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137857462] [2024-12-05 08:17:32,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:17:32,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-05 08:17:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:32,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-05 08:17:32,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-05 08:17:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:32,830 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:32,830 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) [2024-12-05 08:17:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:32,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:32,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:32,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:33,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 08:17:33,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:33,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:33,352 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:33,352 INFO L139 ounterexampleChecker]: Examining path program with hash -1380530385, occurence #1 [2024-12-05 08:17:33,352 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:33,352 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:33,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1823965474, now seen corresponding path program 2 times [2024-12-05 08:17:33,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:33,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543503963] [2024-12-05 08:17:33,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:17:33,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:33,448 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:17:33,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 08:17:34,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:34,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543503963] [2024-12-05 08:17:34,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543503963] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:34,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826685783] [2024-12-05 08:17:34,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:17:34,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:34,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:34,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:34,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 08:17:34,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:17:34,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:34,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-05 08:17:34,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:34,948 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 [2024-12-05 08:17:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 08:17:34,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 08:17:34,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826685783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:17:34,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-05 08:17:34,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2024-12-05 08:17:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875359477] [2024-12-05 08:17:34,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:17:34,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 08:17:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:34,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 08:17:34,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-05 08:17:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:34,990 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:34,990 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) [2024-12-05 08:17:34,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:34,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:34,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:34,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:34,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:35,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 08:17:35,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:35,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:35,313 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:35,313 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #1 [2024-12-05 08:17:35,313 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-05 08:17:35,313 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:35,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash 579740853, now seen corresponding path program 1 times [2024-12-05 08:17:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:35,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629828833] [2024-12-05 08:17:35,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:36,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:36,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629828833] [2024-12-05 08:17:36,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629828833] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:36,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034998006] [2024-12-05 08:17:36,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:17:36,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:36,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:36,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:36,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 08:17:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:17:36,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-05 08:17:36,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:36,368 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 [2024-12-05 08:17:36,496 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 [2024-12-05 08:17:36,529 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 [2024-12-05 08:17:36,560 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 [2024-12-05 08:17:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:36,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:17:37,144 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 [2024-12-05 08:17:37,152 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 [2024-12-05 08:17:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:37,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034998006] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:17:37,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:17:37,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 20 [2024-12-05 08:17:37,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840131733] [2024-12-05 08:17:37,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:17:37,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-05 08:17:37,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:37,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-05 08:17:37,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2024-12-05 08:17:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:37,206 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:37,206 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) [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:37,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:37,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:17:37,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 08:17:37,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:37,781 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:37,781 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:37,781 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #2 [2024-12-05 08:17:37,782 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 08:17:37,782 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-05 08:17:37,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:37,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 08:17:37,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-12-05 08:17:37,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-12-05 08:17:37,792 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:37,792 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 08:17:37,792 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:37,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash -829424272, now seen corresponding path program 2 times [2024-12-05 08:17:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:37,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941717768] [2024-12-05 08:17:37,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:17:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:37,892 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:17:37,892 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941717768] [2024-12-05 08:17:39,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941717768] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440855453] [2024-12-05 08:17:39,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:17:39,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:39,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:39,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:39,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 08:17:40,194 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:17:40,194 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:40,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 08:17:40,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:40,234 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 [2024-12-05 08:17:40,363 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 [2024-12-05 08:17:40,392 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 [2024-12-05 08:17:40,421 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 [2024-12-05 08:17:40,456 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 [2024-12-05 08:17:40,491 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 [2024-12-05 08:17:40,529 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 [2024-12-05 08:17:40,570 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 [2024-12-05 08:17:40,602 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 [2024-12-05 08:17:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:40,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:17:42,093 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 [2024-12-05 08:17:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:42,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440855453] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:17:42,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:17:42,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2024-12-05 08:17:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835988543] [2024-12-05 08:17:42,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:17:42,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-12-05 08:17:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:42,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-12-05 08:17:42,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=938, Unknown=0, NotChecked=0, Total=1406 [2024-12-05 08:17:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:42,249 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:42,249 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) [2024-12-05 08:17:42,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:17:42,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:17:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-05 08:17:43,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 08:17:43,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:43,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:43,373 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:43,373 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #3 [2024-12-05 08:17:43,374 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-05 08:17:43,374 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 08:17:43,374 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 08:17:43,374 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 08:17:43,374 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 08:17:43,374 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-05 08:17:43,374 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-05 08:17:43,374 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,375 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-12-05 08:17:43,375 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-12-05 08:17:43,376 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:43,376 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 08:17:43,376 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:43,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:43,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1276713808, now seen corresponding path program 3 times [2024-12-05 08:17:43,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:43,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237574662] [2024-12-05 08:17:43,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:17:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:44,879 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-12-05 08:17:44,880 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:49,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:17:49,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237574662] [2024-12-05 08:17:49,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237574662] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:17:49,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639505533] [2024-12-05 08:17:49,255 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:17:49,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:49,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:17:49,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:17:49,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 08:17:52,392 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-12-05 08:17:52,392 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:17:52,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-05 08:17:52,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:17:52,431 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 [2024-12-05 08:17:52,509 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 [2024-12-05 08:17:52,529 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 [2024-12-05 08:17:52,549 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 [2024-12-05 08:17:52,576 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 [2024-12-05 08:17:52,603 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 [2024-12-05 08:17:52,629 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 [2024-12-05 08:17:52,658 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 [2024-12-05 08:17:52,689 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 [2024-12-05 08:17:52,721 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 [2024-12-05 08:17:52,758 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 [2024-12-05 08:17:52,786 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 [2024-12-05 08:17:52,819 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 [2024-12-05 08:17:52,847 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 [2024-12-05 08:17:52,881 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 [2024-12-05 08:17:52,913 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 [2024-12-05 08:17:52,945 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 [2024-12-05 08:17:52,980 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 [2024-12-05 08:17:53,011 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 [2024-12-05 08:17:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:53,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:17:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:17:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639505533] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:17:53,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:17:53,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 22] total 65 [2024-12-05 08:17:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556147204] [2024-12-05 08:17:53,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:17:53,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-12-05 08:17:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:17:53,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-12-05 08:17:53,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2024-12-05 08:17:53,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:53,663 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:17:53,663 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) [2024-12-05 08:17:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:53,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:17:53,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-12-05 08:17:53,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-05 08:17:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-12-05 08:17:56,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-05 08:17:57,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:17:57,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:17:57,059 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:17:57,059 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #4 [2024-12-05 08:17:57,059 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 08:17:57,059 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-05 08:17:57,059 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:57,059 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 08:17:57,059 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:17:57,059 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 08:17:57,059 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-12-05 08:17:57,060 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2024-12-05 08:17:57,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,062 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2024-12-05 08:17:57,062 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2024-12-05 08:17:57,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:17:57,063 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 08:17:57,063 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:17:57,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:17:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1206214896, now seen corresponding path program 4 times [2024-12-05 08:17:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:17:57,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654897945] [2024-12-05 08:17:57,064 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:17:57,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:17:57,434 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:17:57,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:18:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:18:07,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:18:07,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654897945] [2024-12-05 08:18:07,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654897945] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:18:07,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258841489] [2024-12-05 08:18:07,132 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-05 08:18:07,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:18:07,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:18:07,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:18:07,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 08:18:07,751 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-05 08:18:07,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:18:07,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-05 08:18:07,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:18:07,803 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 [2024-12-05 08:18:07,892 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 [2024-12-05 08:18:07,915 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 [2024-12-05 08:18:07,944 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 [2024-12-05 08:18:07,974 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 [2024-12-05 08:18:08,000 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 [2024-12-05 08:18:08,031 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 [2024-12-05 08:18:08,059 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 [2024-12-05 08:18:08,092 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 [2024-12-05 08:18:08,121 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 [2024-12-05 08:18:08,151 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 [2024-12-05 08:18:08,183 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 [2024-12-05 08:18:08,216 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 [2024-12-05 08:18:08,247 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 [2024-12-05 08:18:08,280 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 [2024-12-05 08:18:08,312 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 [2024-12-05 08:18:08,344 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 [2024-12-05 08:18:08,379 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 [2024-12-05 08:18:08,415 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 [2024-12-05 08:18:08,455 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 [2024-12-05 08:18:08,496 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 [2024-12-05 08:18:08,536 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 [2024-12-05 08:18:08,573 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 [2024-12-05 08:18:08,613 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 [2024-12-05 08:18:08,663 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 [2024-12-05 08:18:08,712 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 [2024-12-05 08:18:08,760 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 [2024-12-05 08:18:08,806 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 [2024-12-05 08:18:08,852 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 [2024-12-05 08:18:08,900 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 [2024-12-05 08:18:08,948 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 [2024-12-05 08:18:08,995 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 [2024-12-05 08:18:09,039 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 [2024-12-05 08:18:09,090 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 [2024-12-05 08:18:09,175 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 [2024-12-05 08:18:09,221 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 [2024-12-05 08:18:09,264 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 [2024-12-05 08:18:09,310 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 [2024-12-05 08:18:09,355 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 [2024-12-05 08:18:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:18:09,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:18:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:18:11,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258841489] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:18:11,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:18:11,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 44, 43] total 136 [2024-12-05 08:18:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798959784] [2024-12-05 08:18:11,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:18:11,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2024-12-05 08:18:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:18:11,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2024-12-05 08:18:11,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5741, Invalid=12891, Unknown=0, NotChecked=0, Total=18632 [2024-12-05 08:18:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:18:11,419 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:18:11,419 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) [2024-12-05 08:18:11,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:18:11,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-12-05 08:18:11,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:18:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-12-05 08:18:26,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2024-12-05 08:18:26,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 08:18:26,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:18:26,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-05 08:18:26,616 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-05 08:18:26,616 INFO L139 ounterexampleChecker]: Examining path program with hash -324580340, occurence #5 [2024-12-05 08:18:26,616 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-05 08:18:26,616 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-12-05 08:18:26,616 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:18:26,616 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-05 08:18:26,616 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-05 08:18:26,616 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2024-12-05 08:18:26,617 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,617 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2024-12-05 08:18:26,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2024-12-05 08:18:26,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2024-12-05 08:18:26,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2024-12-05 08:18:26,621 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,622 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2024-12-05 08:18:26,622 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2024-12-05 08:18:26,623 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,623 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2024-12-05 08:18:26,624 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-05 08:18:26,624 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-05 08:18:26,624 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-05 08:18:26,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:18:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1273153168, now seen corresponding path program 5 times [2024-12-05 08:18:26,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:18:26,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323645531] [2024-12-05 08:18:26,625 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:18:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:18:31,099 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2024-12-05 08:18:31,100 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:19:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 21255 backedges. 0 proven. 21255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:19:06,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:19:06,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323645531] [2024-12-05 08:19:06,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323645531] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:19:06,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317835135] [2024-12-05 08:19:06,401 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-05 08:19:06,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:19:06,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:19:06,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:19:06,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd0c1d2a-c597-4678-82f7-e1e9eb73cd0a/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process