./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44a148d9de1532cb566543d7eae5d77d4b586265aeb908201e957f15a6f85f92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:53:24,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:53:24,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:53:24,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:53:24,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:53:24,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:53:24,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:53:24,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:53:24,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:53:24,117 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:53:24,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:53:24,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:53:24,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:53:24,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:53:24,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:53:24,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:53:24,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:24,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:24,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:24,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:53:24,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:53:24,121 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 44a148d9de1532cb566543d7eae5d77d4b586265aeb908201e957f15a6f85f92 [2024-12-02 08:53:24,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:53:24,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:53:24,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:53:24,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:53:24,340 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:53:24,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 08:53:26,966 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/data/09f12b157/058d6c1113bf4e38986a2246120a320a/FLAG81aa23194 [2024-12-02 08:53:27,364 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:53:27,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 08:53:27,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/data/09f12b157/058d6c1113bf4e38986a2246120a320a/FLAG81aa23194 [2024-12-02 08:53:27,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/data/09f12b157/058d6c1113bf4e38986a2246120a320a [2024-12-02 08:53:27,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:53:27,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:53:27,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:27,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:53:27,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:53:27,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:27" (1/1) ... [2024-12-02 08:53:27,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278e3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:27, skipping insertion in model container [2024-12-02 08:53:27,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:53:27" (1/1) ... [2024-12-02 08:53:27,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:53:27,746 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_331e7877-6777-4045-a259-720cdd7703b0/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[11705,11718] [2024-12-02 08:53:27,808 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_331e7877-6777-4045-a259-720cdd7703b0/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[19453,19466] [2024-12-02 08:53:28,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:28,286 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:53:28,316 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_331e7877-6777-4045-a259-720cdd7703b0/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[11705,11718] [2024-12-02 08:53:28,328 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_331e7877-6777-4045-a259-720cdd7703b0/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[19453,19466] [2024-12-02 08:53:28,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:53:28,780 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:53:28,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28 WrapperNode [2024-12-02 08:53:28,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:53:28,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:28,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:53:28,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:53:28,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:28,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,088 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5096 [2024-12-02 08:53:29,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:53:29,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:53:29,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:53:29,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:53:29,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,362 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:53:29,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,449 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:53:29,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:53:29,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:53:29,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:53:29,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (1/1) ... [2024-12-02 08:53:29,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:53:29,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:29,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:53:29,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:53:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:53:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:53:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:53:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:53:29,744 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:53:29,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:53:34,469 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 08:53:34,469 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:53:34,502 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:53:34,502 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:53:34,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:34 BoogieIcfgContainer [2024-12-02 08:53:34,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:53:34,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:53:34,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:53:34,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:53:34,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:53:27" (1/3) ... [2024-12-02 08:53:34,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293bb4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:34, skipping insertion in model container [2024-12-02 08:53:34,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:53:28" (2/3) ... [2024-12-02 08:53:34,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293bb4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:53:34, skipping insertion in model container [2024-12-02 08:53:34,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:53:34" (3/3) ... [2024-12-02 08:53:34,515 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 08:53:34,532 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:53:34,535 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 08:53:34,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:53:34,641 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=PETRI_NET, 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;@28b54e52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:53:34,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 08:53:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 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) [2024-12-02 08:53:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 08:53:34,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:34,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:34,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:34,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2024-12-02 08:53:34,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531482332] [2024-12-02 08:53:34,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:34,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:34,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:34,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531482332] [2024-12-02 08:53:34,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531482332] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:34,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:34,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:53:34,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285947038] [2024-12-02 08:53:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:34,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:53:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:34,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:53:34,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:53:34,946 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 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) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:35,032 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-12-02 08:53:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:53:35,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 08:53:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:35,052 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 08:53:35,052 INFO L226 Difference]: Without dead ends: 835 [2024-12-02 08:53:35,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:53:35,062 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:35,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-12-02 08:53:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-12-02 08:53:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 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) [2024-12-02 08:53:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-12-02 08:53:35,149 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-12-02 08:53:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:35,150 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-12-02 08:53:35,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-12-02 08:53:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 08:53:35,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:35,152 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:35,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:53:35,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:35,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-12-02 08:53:35,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:35,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900486444] [2024-12-02 08:53:35,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:35,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:35,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:35,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900486444] [2024-12-02 08:53:35,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900486444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:35,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:35,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:53:35,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29601624] [2024-12-02 08:53:35,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:35,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:53:35,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:35,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:53:35,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:35,452 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:35,574 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-12-02 08:53:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:53:35,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 08:53:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:35,579 INFO L225 Difference]: With dead ends: 883 [2024-12-02 08:53:35,579 INFO L226 Difference]: Without dead ends: 835 [2024-12-02 08:53:35,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:35,580 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:35,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-12-02 08:53:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-12-02 08:53:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 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) [2024-12-02 08:53:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-12-02 08:53:35,601 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-12-02 08:53:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:35,602 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-12-02 08:53:35,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-12-02 08:53:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 08:53:35,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:35,603 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:35,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:53:35,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:35,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-12-02 08:53:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388532762] [2024-12-02 08:53:35,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:35,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:35,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:35,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388532762] [2024-12-02 08:53:35,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388532762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:35,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:35,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:35,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363270114] [2024-12-02 08:53:35,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:35,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:35,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:35,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:35,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:35,846 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-12-02 08:53:36,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:36,161 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2024-12-02 08:53:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:53:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) Word has length 54 [2024-12-02 08:53:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:36,168 INFO L225 Difference]: With dead ends: 1275 [2024-12-02 08:53:36,168 INFO L226 Difference]: Without dead ends: 1231 [2024-12-02 08:53:36,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:53:36,169 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:36,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-12-02 08:53:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2024-12-02 08:53:36,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 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) [2024-12-02 08:53:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2024-12-02 08:53:36,201 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2024-12-02 08:53:36,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:36,201 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2024-12-02 08:53:36,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-12-02 08:53:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2024-12-02 08:53:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 08:53:36,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:36,203 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:36,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:53:36,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:36,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-12-02 08:53:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:36,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872738181] [2024-12-02 08:53:36,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:36,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:36,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:36,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872738181] [2024-12-02 08:53:36,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872738181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:36,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:36,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:36,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235910994] [2024-12-02 08:53:36,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:36,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:36,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:36,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:36,315 INFO L87 Difference]: Start difference. First operand 877 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-12-02 08:53:36,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:36,360 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2024-12-02 08:53:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:36,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) Word has length 56 [2024-12-02 08:53:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:36,365 INFO L225 Difference]: With dead ends: 1038 [2024-12-02 08:53:36,365 INFO L226 Difference]: Without dead ends: 952 [2024-12-02 08:53:36,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:36,366 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:36,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:36,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-12-02 08:53:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2024-12-02 08:53:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 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) [2024-12-02 08:53:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2024-12-02 08:53:36,394 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2024-12-02 08:53:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:36,394 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2024-12-02 08:53:36,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-12-02 08:53:36,394 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2024-12-02 08:53:36,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 08:53:36,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:36,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:36,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:53:36,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:36,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-12-02 08:53:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:36,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449308684] [2024-12-02 08:53:36,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:36,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:36,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:36,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449308684] [2024-12-02 08:53:36,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449308684] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:36,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:36,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:36,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100402413] [2024-12-02 08:53:36,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:36,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:36,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:36,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:36,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:36,700 INFO L87 Difference]: Start difference. First operand 948 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-12-02 08:53:36,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:36,891 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2024-12-02 08:53:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:36,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) Word has length 56 [2024-12-02 08:53:36,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:36,896 INFO L225 Difference]: With dead ends: 1107 [2024-12-02 08:53:36,896 INFO L226 Difference]: Without dead ends: 950 [2024-12-02 08:53:36,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:53:36,897 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:36,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1813 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-12-02 08:53:36,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-12-02 08:53:36,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 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) [2024-12-02 08:53:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2024-12-02 08:53:36,922 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2024-12-02 08:53:36,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:36,923 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2024-12-02 08:53:36,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-12-02 08:53:36,923 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2024-12-02 08:53:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 08:53:36,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:36,924 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:36,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:53:36,924 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:36,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:36,924 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-12-02 08:53:36,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:36,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421160481] [2024-12-02 08:53:36,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:36,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:37,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:37,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421160481] [2024-12-02 08:53:37,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421160481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:37,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:53:37,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663337533] [2024-12-02 08:53:37,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:37,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:53:37,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:37,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:53:37,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:53:37,206 INFO L87 Difference]: Start difference. First operand 948 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:37,285 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2024-12-02 08:53:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:53:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 08:53:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:37,289 INFO L225 Difference]: With dead ends: 956 [2024-12-02 08:53:37,289 INFO L226 Difference]: Without dead ends: 954 [2024-12-02 08:53:37,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:53:37,291 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:37,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-12-02 08:53:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2024-12-02 08:53:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 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) [2024-12-02 08:53:37,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2024-12-02 08:53:37,315 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2024-12-02 08:53:37,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:37,315 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2024-12-02 08:53:37,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:37,315 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2024-12-02 08:53:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 08:53:37,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:37,316 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:37,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:53:37,316 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:37,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-12-02 08:53:37,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:37,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627874530] [2024-12-02 08:53:37,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:37,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:37,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:37,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627874530] [2024-12-02 08:53:37,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627874530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:37,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:37,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662471544] [2024-12-02 08:53:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:37,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:37,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:37,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:37,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,378 INFO L87 Difference]: Start difference. First operand 954 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:37,409 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2024-12-02 08:53:37,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:37,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2024-12-02 08:53:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:37,414 INFO L225 Difference]: With dead ends: 1264 [2024-12-02 08:53:37,414 INFO L226 Difference]: Without dead ends: 1101 [2024-12-02 08:53:37,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,415 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:37,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:37,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-12-02 08:53:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-12-02 08:53:37,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 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) [2024-12-02 08:53:37,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2024-12-02 08:53:37,444 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2024-12-02 08:53:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:37,444 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2024-12-02 08:53:37,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2024-12-02 08:53:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 08:53:37,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:37,445 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:37,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:53:37,446 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:37,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:37,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-12-02 08:53:37,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:37,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814198486] [2024-12-02 08:53:37,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:37,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:37,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814198486] [2024-12-02 08:53:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814198486] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:37,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:37,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:37,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031626548] [2024-12-02 08:53:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:37,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:37,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:37,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,507 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:37,543 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2024-12-02 08:53:37,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2024-12-02 08:53:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:37,549 INFO L225 Difference]: With dead ends: 1683 [2024-12-02 08:53:37,549 INFO L226 Difference]: Without dead ends: 1375 [2024-12-02 08:53:37,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,550 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:37,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-12-02 08:53:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2024-12-02 08:53:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 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) [2024-12-02 08:53:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2024-12-02 08:53:37,586 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2024-12-02 08:53:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:37,587 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2024-12-02 08:53:37,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2024-12-02 08:53:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 08:53:37,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:37,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:37,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:53:37,588 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:37,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-12-02 08:53:37,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:37,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104386766] [2024-12-02 08:53:37,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:37,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104386766] [2024-12-02 08:53:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104386766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:37,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:37,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:37,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566630069] [2024-12-02 08:53:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:37,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:37,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:37,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:37,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,644 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:37,685 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2024-12-02 08:53:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:37,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2024-12-02 08:53:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:37,693 INFO L225 Difference]: With dead ends: 2473 [2024-12-02 08:53:37,693 INFO L226 Difference]: Without dead ends: 1891 [2024-12-02 08:53:37,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,694 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:37,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-12-02 08:53:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-12-02 08:53:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 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) [2024-12-02 08:53:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2024-12-02 08:53:37,749 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2024-12-02 08:53:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:37,749 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2024-12-02 08:53:37,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2024-12-02 08:53:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 08:53:37,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:37,750 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:37,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:53:37,750 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:37,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:37,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-12-02 08:53:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:37,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046826401] [2024-12-02 08:53:37,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:37,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:37,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046826401] [2024-12-02 08:53:37,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046826401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:37,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:37,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752570496] [2024-12-02 08:53:37,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:37,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:37,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:37,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:37,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,810 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:37,872 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2024-12-02 08:53:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:37,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2024-12-02 08:53:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:37,881 INFO L225 Difference]: With dead ends: 3957 [2024-12-02 08:53:37,881 INFO L226 Difference]: Without dead ends: 2859 [2024-12-02 08:53:37,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:37,884 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:37,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-12-02 08:53:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2024-12-02 08:53:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 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) [2024-12-02 08:53:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2024-12-02 08:53:37,980 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2024-12-02 08:53:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:37,980 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2024-12-02 08:53:37,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-12-02 08:53:37,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2024-12-02 08:53:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 08:53:37,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:37,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:37,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:53:37,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:37,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:37,981 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-12-02 08:53:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:37,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215365315] [2024-12-02 08:53:37,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:38,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:38,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215365315] [2024-12-02 08:53:38,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215365315] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:38,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:38,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:38,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293799328] [2024-12-02 08:53:38,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:38,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:38,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:38,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:38,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:38,021 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-12-02 08:53:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:38,068 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2024-12-02 08:53:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:38,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) Word has length 60 [2024-12-02 08:53:38,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:38,076 INFO L225 Difference]: With dead ends: 5040 [2024-12-02 08:53:38,076 INFO L226 Difference]: Without dead ends: 3853 [2024-12-02 08:53:38,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:38,078 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:38,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-12-02 08:53:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-12-02 08:53:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 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) [2024-12-02 08:53:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2024-12-02 08:53:38,142 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2024-12-02 08:53:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:38,143 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2024-12-02 08:53:38,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-12-02 08:53:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2024-12-02 08:53:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 08:53:38,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:38,143 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:38,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:53:38,144 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:38,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash -743767455, now seen corresponding path program 1 times [2024-12-02 08:53:38,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:38,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738433130] [2024-12-02 08:53:38,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:38,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:38,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:38,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738433130] [2024-12-02 08:53:38,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738433130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:38,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:38,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335975477] [2024-12-02 08:53:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:38,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:53:38,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:38,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:53:38,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:53:38,246 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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) [2024-12-02 08:53:44,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:44,066 INFO L93 Difference]: Finished difference Result 6106 states and 10140 transitions. [2024-12-02 08:53:44,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:53:44,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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) Word has length 67 [2024-12-02 08:53:44,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:44,076 INFO L225 Difference]: With dead ends: 6106 [2024-12-02 08:53:44,076 INFO L226 Difference]: Without dead ends: 5353 [2024-12-02 08:53:44,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:44,077 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 2393 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:44,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 800 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 08:53:44,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-12-02 08:53:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2024-12-02 08:53:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.4847692020183143) internal successors, (7945), 5352 states have internal predecessors, (7945), 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) [2024-12-02 08:53:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7945 transitions. [2024-12-02 08:53:44,205 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7945 transitions. Word has length 67 [2024-12-02 08:53:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:44,205 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7945 transitions. [2024-12-02 08:53:44,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 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) [2024-12-02 08:53:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7945 transitions. [2024-12-02 08:53:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 08:53:44,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:44,208 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:44,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:53:44,208 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:44,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-12-02 08:53:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:44,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798917682] [2024-12-02 08:53:44,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:53:44,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:44,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798917682] [2024-12-02 08:53:44,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798917682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:44,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:44,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:44,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15584600] [2024-12-02 08:53:44,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:44,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:44,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:44,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:44,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:44,421 INFO L87 Difference]: Start difference. First operand 5353 states and 7945 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-12-02 08:53:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:44,920 INFO L93 Difference]: Finished difference Result 21301 states and 30607 transitions. [2024-12-02 08:53:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) Word has length 77 [2024-12-02 08:53:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:44,973 INFO L225 Difference]: With dead ends: 21301 [2024-12-02 08:53:44,974 INFO L226 Difference]: Without dead ends: 18243 [2024-12-02 08:53:44,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:53:44,983 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6332 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:44,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2024-12-02 08:53:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 8409. [2024-12-02 08:53:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8407 states have (on average 1.4570001189484953) internal successors, (12249), 8408 states have internal predecessors, (12249), 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) [2024-12-02 08:53:45,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 12249 transitions. [2024-12-02 08:53:45,384 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 12249 transitions. Word has length 77 [2024-12-02 08:53:45,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:45,384 INFO L471 AbstractCegarLoop]: Abstraction has 8409 states and 12249 transitions. [2024-12-02 08:53:45,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-12-02 08:53:45,384 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 12249 transitions. [2024-12-02 08:53:45,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 08:53:45,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:45,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:45,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:53:45,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:45,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:45,387 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-12-02 08:53:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:45,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621091712] [2024-12-02 08:53:45,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 08:53:45,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:45,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621091712] [2024-12-02 08:53:45,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621091712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:45,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:45,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:45,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938893171] [2024-12-02 08:53:45,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:45,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:45,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:45,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:45,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:45,565 INFO L87 Difference]: Start difference. First operand 8409 states and 12249 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-12-02 08:53:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:45,942 INFO L93 Difference]: Finished difference Result 24357 states and 34911 transitions. [2024-12-02 08:53:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:45,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) Word has length 77 [2024-12-02 08:53:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:45,976 INFO L225 Difference]: With dead ends: 24357 [2024-12-02 08:53:45,976 INFO L226 Difference]: Without dead ends: 21299 [2024-12-02 08:53:45,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:53:45,983 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:45,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:45,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21299 states. [2024-12-02 08:53:46,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21299 to 13001. [2024-12-02 08:53:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 12999 states have (on average 1.4358796830525424) internal successors, (18665), 13000 states have internal predecessors, (18665), 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) [2024-12-02 08:53:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 18665 transitions. [2024-12-02 08:53:46,294 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 18665 transitions. Word has length 77 [2024-12-02 08:53:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:46,295 INFO L471 AbstractCegarLoop]: Abstraction has 13001 states and 18665 transitions. [2024-12-02 08:53:46,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2024-12-02 08:53:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 18665 transitions. [2024-12-02 08:53:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 08:53:46,296 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:46,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:46,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:53:46,297 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:46,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:46,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-12-02 08:53:46,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:46,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135564257] [2024-12-02 08:53:46,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:46,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 08:53:46,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:46,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135564257] [2024-12-02 08:53:46,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135564257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:46,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:46,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459229771] [2024-12-02 08:53:46,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:46,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:46,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:46,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:46,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:46,410 INFO L87 Difference]: Start difference. First operand 13001 states and 18665 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:46,803 INFO L93 Difference]: Finished difference Result 27413 states and 39215 transitions. [2024-12-02 08:53:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-02 08:53:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:46,834 INFO L225 Difference]: With dead ends: 27413 [2024-12-02 08:53:46,834 INFO L226 Difference]: Without dead ends: 24355 [2024-12-02 08:53:46,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:53:46,841 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:46,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2024-12-02 08:53:47,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 16057. [2024-12-02 08:53:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16055 states have (on average 1.43064465898474) internal successors, (22969), 16056 states have internal predecessors, (22969), 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) [2024-12-02 08:53:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 22969 transitions. [2024-12-02 08:53:47,227 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 22969 transitions. Word has length 77 [2024-12-02 08:53:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:47,227 INFO L471 AbstractCegarLoop]: Abstraction has 16057 states and 22969 transitions. [2024-12-02 08:53:47,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:53:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 22969 transitions. [2024-12-02 08:53:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 08:53:47,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:47,228 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:47,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:53:47,229 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:47,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-12-02 08:53:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:47,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284405068] [2024-12-02 08:53:47,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:47,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 08:53:47,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:47,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284405068] [2024-12-02 08:53:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284405068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:47,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:47,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:47,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843760513] [2024-12-02 08:53:47,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:47,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:47,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:47,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:47,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:47,345 INFO L87 Difference]: Start difference. First operand 16057 states and 22969 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-12-02 08:53:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:47,776 INFO L93 Difference]: Finished difference Result 30469 states and 43519 transitions. [2024-12-02 08:53:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:47,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) Word has length 77 [2024-12-02 08:53:47,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:47,806 INFO L225 Difference]: With dead ends: 30469 [2024-12-02 08:53:47,806 INFO L226 Difference]: Without dead ends: 27411 [2024-12-02 08:53:47,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:53:47,814 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:47,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27411 states. [2024-12-02 08:53:48,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27411 to 19113. [2024-12-02 08:53:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19113 states, 19111 states have (on average 1.4270838783946418) internal successors, (27273), 19112 states have internal predecessors, (27273), 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) [2024-12-02 08:53:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 27273 transitions. [2024-12-02 08:53:48,398 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 27273 transitions. Word has length 77 [2024-12-02 08:53:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:48,398 INFO L471 AbstractCegarLoop]: Abstraction has 19113 states and 27273 transitions. [2024-12-02 08:53:48,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2024-12-02 08:53:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 27273 transitions. [2024-12-02 08:53:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:53:48,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:48,401 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:48,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:53:48,401 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:48,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-12-02 08:53:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:48,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466845245] [2024-12-02 08:53:48,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:48,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466845245] [2024-12-02 08:53:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466845245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:48,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:48,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:48,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608158722] [2024-12-02 08:53:48,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:48,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:48,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:48,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:48,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:48,496 INFO L87 Difference]: Start difference. First operand 19113 states and 27273 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-12-02 08:53:48,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:48,798 INFO L93 Difference]: Finished difference Result 31105 states and 44368 transitions. [2024-12-02 08:53:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:48,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) Word has length 79 [2024-12-02 08:53:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:48,813 INFO L225 Difference]: With dead ends: 31105 [2024-12-02 08:53:48,813 INFO L226 Difference]: Without dead ends: 14287 [2024-12-02 08:53:48,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:48,824 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:48,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2024-12-02 08:53:49,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 14285. [2024-12-02 08:53:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14285 states, 14283 states have (on average 1.4359028215360918) internal successors, (20509), 14284 states have internal predecessors, (20509), 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) [2024-12-02 08:53:49,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14285 states to 14285 states and 20509 transitions. [2024-12-02 08:53:49,073 INFO L78 Accepts]: Start accepts. Automaton has 14285 states and 20509 transitions. Word has length 79 [2024-12-02 08:53:49,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:49,073 INFO L471 AbstractCegarLoop]: Abstraction has 14285 states and 20509 transitions. [2024-12-02 08:53:49,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-12-02 08:53:49,074 INFO L276 IsEmpty]: Start isEmpty. Operand 14285 states and 20509 transitions. [2024-12-02 08:53:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:53:49,075 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:49,075 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:49,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:53:49,075 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:49,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-12-02 08:53:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:49,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135297959] [2024-12-02 08:53:49,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:49,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:53:49,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135297959] [2024-12-02 08:53:49,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135297959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:49,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:49,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:53:49,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444246716] [2024-12-02 08:53:49,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:49,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:49,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:49,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:49,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:49,192 INFO L87 Difference]: Start difference. First operand 14285 states and 20509 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-12-02 08:53:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:49,669 INFO L93 Difference]: Finished difference Result 25177 states and 36035 transitions. [2024-12-02 08:53:49,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:53:49,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) Word has length 79 [2024-12-02 08:53:49,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:49,691 INFO L225 Difference]: With dead ends: 25177 [2024-12-02 08:53:49,691 INFO L226 Difference]: Without dead ends: 22999 [2024-12-02 08:53:49,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:53:49,698 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:49,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:53:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-12-02 08:53:50,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 16461. [2024-12-02 08:53:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16461 states, 16459 states have (on average 1.432711586366122) internal successors, (23581), 16460 states have internal predecessors, (23581), 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) [2024-12-02 08:53:50,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16461 states to 16461 states and 23581 transitions. [2024-12-02 08:53:50,083 INFO L78 Accepts]: Start accepts. Automaton has 16461 states and 23581 transitions. Word has length 79 [2024-12-02 08:53:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:50,083 INFO L471 AbstractCegarLoop]: Abstraction has 16461 states and 23581 transitions. [2024-12-02 08:53:50,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-12-02 08:53:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16461 states and 23581 transitions. [2024-12-02 08:53:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 08:53:50,085 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:50,085 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:50,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:53:50,085 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:50,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-12-02 08:53:50,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:50,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892349906] [2024-12-02 08:53:50,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:50,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:50,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:50,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892349906] [2024-12-02 08:53:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892349906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:50,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:50,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867712212] [2024-12-02 08:53:50,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:50,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:50,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:50,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:50,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:50,169 INFO L87 Difference]: Start difference. First operand 16461 states and 23581 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 08:53:50,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:50,317 INFO L93 Difference]: Finished difference Result 23537 states and 33567 transitions. [2024-12-02 08:53:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:50,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) Word has length 80 [2024-12-02 08:53:50,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:50,327 INFO L225 Difference]: With dead ends: 23537 [2024-12-02 08:53:50,327 INFO L226 Difference]: Without dead ends: 9391 [2024-12-02 08:53:50,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:50,335 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:50,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2024-12-02 08:53:50,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 9389. [2024-12-02 08:53:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9387 states have (on average 1.4374134441248536) internal successors, (13493), 9388 states have internal predecessors, (13493), 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) [2024-12-02 08:53:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 13493 transitions. [2024-12-02 08:53:50,625 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 13493 transitions. Word has length 80 [2024-12-02 08:53:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:50,626 INFO L471 AbstractCegarLoop]: Abstraction has 9389 states and 13493 transitions. [2024-12-02 08:53:50,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 08:53:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 13493 transitions. [2024-12-02 08:53:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 08:53:50,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:50,628 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:50,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:53:50,628 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:50,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:50,628 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-12-02 08:53:50,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:50,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110428046] [2024-12-02 08:53:50,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:50,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:50,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110428046] [2024-12-02 08:53:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110428046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66641912] [2024-12-02 08:53:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:50,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:50,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:50,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:50,730 INFO L87 Difference]: Start difference. First operand 9389 states and 13493 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 08:53:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:50,860 INFO L93 Difference]: Finished difference Result 12929 states and 18435 transitions. [2024-12-02 08:53:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:50,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) Word has length 82 [2024-12-02 08:53:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:50,867 INFO L225 Difference]: With dead ends: 12929 [2024-12-02 08:53:50,867 INFO L226 Difference]: Without dead ends: 5855 [2024-12-02 08:53:50,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:50,874 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:50,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-12-02 08:53:50,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5853. [2024-12-02 08:53:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 5851 states have (on average 1.4529140317894378) internal successors, (8501), 5852 states have internal predecessors, (8501), 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) [2024-12-02 08:53:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 8501 transitions. [2024-12-02 08:53:50,969 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 8501 transitions. Word has length 82 [2024-12-02 08:53:50,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:50,969 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 8501 transitions. [2024-12-02 08:53:50,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 08:53:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 8501 transitions. [2024-12-02 08:53:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:53:50,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:50,970 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:50,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:53:50,970 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:50,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:50,971 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-12-02 08:53:50,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:50,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934009377] [2024-12-02 08:53:50,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:50,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:51,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:51,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934009377] [2024-12-02 08:53:51,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934009377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:51,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:51,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:51,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222356133] [2024-12-02 08:53:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:51,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:51,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:51,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:51,060 INFO L87 Difference]: Start difference. First operand 5853 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 08:53:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:51,136 INFO L93 Difference]: Finished difference Result 7625 states and 10947 transitions. [2024-12-02 08:53:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:51,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) Word has length 84 [2024-12-02 08:53:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:51,141 INFO L225 Difference]: With dead ends: 7625 [2024-12-02 08:53:51,141 INFO L226 Difference]: Without dead ends: 4087 [2024-12-02 08:53:51,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:51,146 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:51,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2024-12-02 08:53:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2024-12-02 08:53:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4083 states have (on average 1.4771001714425667) internal successors, (6031), 4084 states have internal predecessors, (6031), 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) [2024-12-02 08:53:51,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6031 transitions. [2024-12-02 08:53:51,232 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6031 transitions. Word has length 84 [2024-12-02 08:53:51,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:51,233 INFO L471 AbstractCegarLoop]: Abstraction has 4085 states and 6031 transitions. [2024-12-02 08:53:51,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 08:53:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6031 transitions. [2024-12-02 08:53:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:53:51,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:51,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:51,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:53:51,234 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:51,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-12-02 08:53:51,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:51,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923795195] [2024-12-02 08:53:51,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:51,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923795195] [2024-12-02 08:53:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923795195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:51,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:53:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:53:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978161788] [2024-12-02 08:53:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:51,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:51,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:51,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:51,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:51,320 INFO L87 Difference]: Start difference. First operand 4085 states and 6031 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 08:53:51,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:51,366 INFO L93 Difference]: Finished difference Result 4973 states and 7242 transitions. [2024-12-02 08:53:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) Word has length 86 [2024-12-02 08:53:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:51,371 INFO L225 Difference]: With dead ends: 4973 [2024-12-02 08:53:51,371 INFO L226 Difference]: Without dead ends: 3203 [2024-12-02 08:53:51,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:53:51,374 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:51,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:53:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-12-02 08:53:51,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-12-02 08:53:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.5032822757111597) internal successors, (4809), 3200 states have internal predecessors, (4809), 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) [2024-12-02 08:53:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4809 transitions. [2024-12-02 08:53:51,432 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4809 transitions. Word has length 86 [2024-12-02 08:53:51,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:51,432 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4809 transitions. [2024-12-02 08:53:51,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 08:53:51,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4809 transitions. [2024-12-02 08:53:51,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 08:53:51,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:51,434 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:51,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:53:51,434 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:51,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-12-02 08:53:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247143005] [2024-12-02 08:53:51,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:52,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247143005] [2024-12-02 08:53:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247143005] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:53:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832058287] [2024-12-02 08:53:52,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:52,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:52,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:52,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:52,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:53:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:52,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:53:52,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:53:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:52,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:53:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:54,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832058287] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:53:54,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:53:54,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 08:53:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629048883] [2024-12-02 08:53:54,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:53:54,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 08:53:54,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:54,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 08:53:54,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:53:54,189 INFO L87 Difference]: Start difference. First operand 3201 states and 4809 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 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) [2024-12-02 08:53:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:55,747 INFO L93 Difference]: Finished difference Result 6959 states and 9873 transitions. [2024-12-02 08:53:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 08:53:55,747 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 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) Word has length 88 [2024-12-02 08:53:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:55,751 INFO L225 Difference]: With dead ends: 6959 [2024-12-02 08:53:55,751 INFO L226 Difference]: Without dead ends: 6073 [2024-12-02 08:53:55,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 08:53:55,753 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 18843 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18843 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:55,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18843 Valid, 6479 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:53:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-12-02 08:53:55,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6035. [2024-12-02 08:53:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 6033 states have (on average 1.424167081054202) internal successors, (8592), 6034 states have internal predecessors, (8592), 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) [2024-12-02 08:53:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8592 transitions. [2024-12-02 08:53:55,911 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8592 transitions. Word has length 88 [2024-12-02 08:53:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:55,911 INFO L471 AbstractCegarLoop]: Abstraction has 6035 states and 8592 transitions. [2024-12-02 08:53:55,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 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) [2024-12-02 08:53:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8592 transitions. [2024-12-02 08:53:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 08:53:55,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:55,913 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:55,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:53:56,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:56,114 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:56,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597732, now seen corresponding path program 1 times [2024-12-02 08:53:56,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:56,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348243807] [2024-12-02 08:53:56,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:56,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:56,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348243807] [2024-12-02 08:53:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348243807] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:53:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926523451] [2024-12-02 08:53:56,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:56,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:56,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:56,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:56,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:53:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:56,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:53:56,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:53:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:53:56,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:53:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:53:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926523451] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:53:56,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:53:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-12-02 08:53:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994272900] [2024-12-02 08:53:56,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:53:56,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:53:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:56,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:53:56,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:53:56,884 INFO L87 Difference]: Start difference. First operand 6035 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 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) [2024-12-02 08:53:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:58,557 INFO L93 Difference]: Finished difference Result 20439 states and 27612 transitions. [2024-12-02 08:53:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 08:53:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 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) Word has length 89 [2024-12-02 08:53:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:58,571 INFO L225 Difference]: With dead ends: 20439 [2024-12-02 08:53:58,571 INFO L226 Difference]: Without dead ends: 16719 [2024-12-02 08:53:58,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 08:53:58,576 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 11999 mSDsluCounter, 7984 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11999 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:58,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11999 Valid, 9530 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:53:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16719 states. [2024-12-02 08:53:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16719 to 16633. [2024-12-02 08:53:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16633 states, 16631 states have (on average 1.3067765017136672) internal successors, (21733), 16632 states have internal predecessors, (21733), 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) [2024-12-02 08:53:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 21733 transitions. [2024-12-02 08:53:59,162 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 21733 transitions. Word has length 89 [2024-12-02 08:53:59,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 16633 states and 21733 transitions. [2024-12-02 08:53:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 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) [2024-12-02 08:53:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 21733 transitions. [2024-12-02 08:53:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 08:53:59,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:59,164 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:59,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:53:59,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 08:53:59,365 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:59,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1775616186, now seen corresponding path program 1 times [2024-12-02 08:53:59,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:59,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042765170] [2024-12-02 08:53:59,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:59,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:53:59,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042765170] [2024-12-02 08:53:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042765170] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:53:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426189556] [2024-12-02 08:53:59,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:59,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:59,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:59,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:53:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:59,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:53:59,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:54:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:00,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:54:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:01,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426189556] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:54:01,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:54:01,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 08:54:01,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470483582] [2024-12-02 08:54:01,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:54:01,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:54:01,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:01,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:54:01,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:54:01,102 INFO L87 Difference]: Start difference. First operand 16633 states and 21733 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 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) [2024-12-02 08:54:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:02,211 INFO L93 Difference]: Finished difference Result 45197 states and 58116 transitions. [2024-12-02 08:54:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:54:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 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) Word has length 89 [2024-12-02 08:54:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:02,232 INFO L225 Difference]: With dead ends: 45197 [2024-12-02 08:54:02,232 INFO L226 Difference]: Without dead ends: 31510 [2024-12-02 08:54:02,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:54:02,242 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 10803 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10803 SdHoareTripleChecker+Valid, 4813 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:02,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10803 Valid, 4813 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:54:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31510 states. [2024-12-02 08:54:03,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31510 to 31138. [2024-12-02 08:54:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31138 states, 31136 states have (on average 1.2746017471736897) internal successors, (39686), 31137 states have internal predecessors, (39686), 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) [2024-12-02 08:54:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31138 states to 31138 states and 39686 transitions. [2024-12-02 08:54:03,326 INFO L78 Accepts]: Start accepts. Automaton has 31138 states and 39686 transitions. Word has length 89 [2024-12-02 08:54:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:03,326 INFO L471 AbstractCegarLoop]: Abstraction has 31138 states and 39686 transitions. [2024-12-02 08:54:03,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 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) [2024-12-02 08:54:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 31138 states and 39686 transitions. [2024-12-02 08:54:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 08:54:03,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:03,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:54:03,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:54:03,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:03,529 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:03,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash 2718711, now seen corresponding path program 1 times [2024-12-02 08:54:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:03,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004959451] [2024-12-02 08:54:03,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:03,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:03,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:03,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004959451] [2024-12-02 08:54:03,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004959451] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:54:03,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117923579] [2024-12-02 08:54:03,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:54:03,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:54:03,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:54:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:04,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:54:04,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:54:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:04,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:54:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117923579] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:54:05,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:54:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-12-02 08:54:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219692892] [2024-12-02 08:54:05,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:54:05,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 08:54:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:05,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 08:54:05,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:54:05,671 INFO L87 Difference]: Start difference. First operand 31138 states and 39686 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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) [2024-12-02 08:54:07,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:07,512 INFO L93 Difference]: Finished difference Result 85010 states and 107498 transitions. [2024-12-02 08:54:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:54:07,513 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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) Word has length 90 [2024-12-02 08:54:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:07,555 INFO L225 Difference]: With dead ends: 85010 [2024-12-02 08:54:07,555 INFO L226 Difference]: Without dead ends: 60753 [2024-12-02 08:54:07,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:54:07,567 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 10702 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10702 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:07,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10702 Valid, 6330 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:54:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60753 states. [2024-12-02 08:54:09,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60753 to 60013. [2024-12-02 08:54:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60013 states, 60011 states have (on average 1.2502374564663146) internal successors, (75028), 60012 states have internal predecessors, (75028), 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) [2024-12-02 08:54:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60013 states to 60013 states and 75028 transitions. [2024-12-02 08:54:09,841 INFO L78 Accepts]: Start accepts. Automaton has 60013 states and 75028 transitions. Word has length 90 [2024-12-02 08:54:09,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:09,842 INFO L471 AbstractCegarLoop]: Abstraction has 60013 states and 75028 transitions. [2024-12-02 08:54:09,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 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) [2024-12-02 08:54:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 60013 states and 75028 transitions. [2024-12-02 08:54:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 08:54:09,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:09,844 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:54:09,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:54:10,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:10,045 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:10,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:10,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1519319510, now seen corresponding path program 1 times [2024-12-02 08:54:10,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:10,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565740610] [2024-12-02 08:54:10,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:10,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:54:10,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565740610] [2024-12-02 08:54:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565740610] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:54:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126819194] [2024-12-02 08:54:10,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:10,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:54:10,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:54:10,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:54:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:10,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 08:54:10,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:56:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:56:11,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:56:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:56:19,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126819194] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:56:19,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:56:20,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 30] total 67 [2024-12-02 08:56:20,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673298630] [2024-12-02 08:56:20,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:56:20,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 08:56:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:20,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 08:56:20,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=3680, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 08:56:20,007 INFO L87 Difference]: Start difference. First operand 60013 states and 75028 transitions. Second operand has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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) [2024-12-02 08:56:42,467 WARN L286 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 367 DAG size of output: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 08:56:56,013 WARN L286 SmtUtils]: Spent 11.64s on a formula simplification. DAG size of input: 480 DAG size of output: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 08:58:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:11,141 INFO L93 Difference]: Finished difference Result 135734 states and 169833 transitions. [2024-12-02 08:58:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-12-02 08:58:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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) Word has length 91 [2024-12-02 08:58:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:11,380 INFO L225 Difference]: With dead ends: 135734 [2024-12-02 08:58:11,381 INFO L226 Difference]: Without dead ends: 83097 [2024-12-02 08:58:11,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13306 ImplicationChecksByTransitivity, 119.7s TimeCoverageRelationStatistics Valid=7448, Invalid=31558, Unknown=0, NotChecked=0, Total=39006 [2024-12-02 08:58:11,423 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 15686 mSDsluCounter, 28267 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15686 SdHoareTripleChecker+Valid, 29824 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:11,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15686 Valid, 29824 Invalid, 3633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [133 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 08:58:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83097 states. [2024-12-02 08:58:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83097 to 67621. [2024-12-02 08:58:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67621 states, 67619 states have (on average 1.2452565107440217) internal successors, (84203), 67620 states have internal predecessors, (84203), 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) [2024-12-02 08:58:15,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67621 states to 67621 states and 84203 transitions. [2024-12-02 08:58:15,414 INFO L78 Accepts]: Start accepts. Automaton has 67621 states and 84203 transitions. Word has length 91 [2024-12-02 08:58:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:15,415 INFO L471 AbstractCegarLoop]: Abstraction has 67621 states and 84203 transitions. [2024-12-02 08:58:15,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 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) [2024-12-02 08:58:15,415 INFO L276 IsEmpty]: Start isEmpty. Operand 67621 states and 84203 transitions. [2024-12-02 08:58:15,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 08:58:15,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:15,429 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:58:15,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:58:15,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:58:15,630 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:15,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:15,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2024-12-02 08:58:15,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:15,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357248801] [2024-12-02 08:58:15,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:15,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:58:18,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:18,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357248801] [2024-12-02 08:58:18,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357248801] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:58:18,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307288023] [2024-12-02 08:58:18,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:18,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:58:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:58:18,956 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:58:18,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:58:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:19,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:58:19,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:58:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:58:20,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:58:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:58:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307288023] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:58:22,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:58:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 13] total 51 [2024-12-02 08:58:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378012895] [2024-12-02 08:58:22,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:58:22,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 08:58:22,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:22,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 08:58:22,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2381, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 08:58:22,284 INFO L87 Difference]: Start difference. First operand 67621 states and 84203 transitions. Second operand has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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) [2024-12-02 08:58:54,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:54,578 INFO L93 Difference]: Finished difference Result 117008 states and 144993 transitions. [2024-12-02 08:58:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2024-12-02 08:58:54,578 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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) Word has length 92 [2024-12-02 08:58:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:54,655 INFO L225 Difference]: With dead ends: 117008 [2024-12-02 08:58:54,655 INFO L226 Difference]: Without dead ends: 92512 [2024-12-02 08:58:54,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16137 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=7913, Invalid=41149, Unknown=0, NotChecked=0, Total=49062 [2024-12-02 08:58:54,676 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 30650 mSDsluCounter, 33835 mSDsCounter, 0 mSdLazyCounter, 7785 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30650 SdHoareTripleChecker+Valid, 35516 SdHoareTripleChecker+Invalid, 7953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 7785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:54,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30650 Valid, 35516 Invalid, 7953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [168 Valid, 7785 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-12-02 08:58:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92512 states. [2024-12-02 08:58:57,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92512 to 59795. [2024-12-02 08:58:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59795 states, 59793 states have (on average 1.2402789624203503) internal successors, (74160), 59794 states have internal predecessors, (74160), 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) [2024-12-02 08:58:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59795 states to 59795 states and 74160 transitions. [2024-12-02 08:58:57,745 INFO L78 Accepts]: Start accepts. Automaton has 59795 states and 74160 transitions. Word has length 92 [2024-12-02 08:58:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:57,745 INFO L471 AbstractCegarLoop]: Abstraction has 59795 states and 74160 transitions. [2024-12-02 08:58:57,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 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) [2024-12-02 08:58:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 59795 states and 74160 transitions. [2024-12-02 08:58:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 08:58:57,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:57,749 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:58:57,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:58:57,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 08:58:57,949 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:57,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:57,950 INFO L85 PathProgramCache]: Analyzing trace with hash -108097977, now seen corresponding path program 1 times [2024-12-02 08:58:57,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:57,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682226053] [2024-12-02 08:58:57,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:57,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:58:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682226053] [2024-12-02 08:58:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682226053] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:58:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936194502] [2024-12-02 08:58:58,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:58,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:58:58,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:58:58,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:58:58,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:58:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:59,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 08:58:59,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:59:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:59:01,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:59:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:59:02,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936194502] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:59:02,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:59:02,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 40 [2024-12-02 08:59:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428448610] [2024-12-02 08:59:02,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:59:02,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 08:59:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:02,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 08:59:02,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1368, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:59:02,919 INFO L87 Difference]: Start difference. First operand 59795 states and 74160 transitions. Second operand has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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) [2024-12-02 08:59:17,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:17,857 INFO L93 Difference]: Finished difference Result 135971 states and 169333 transitions. [2024-12-02 08:59:17,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-12-02 08:59:17,857 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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) Word has length 92 [2024-12-02 08:59:17,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:17,947 INFO L225 Difference]: With dead ends: 135971 [2024-12-02 08:59:17,947 INFO L226 Difference]: Without dead ends: 106227 [2024-12-02 08:59:17,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4857 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2854, Invalid=11426, Unknown=0, NotChecked=0, Total=14280 [2024-12-02 08:59:17,969 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 14854 mSDsluCounter, 16010 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14854 SdHoareTripleChecker+Valid, 17578 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:17,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14854 Valid, 17578 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 08:59:18,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106227 states. [2024-12-02 08:59:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106227 to 66289. [2024-12-02 08:59:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66289 states, 66287 states have (on average 1.24218926788058) internal successors, (82341), 66288 states have internal predecessors, (82341), 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) [2024-12-02 08:59:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66289 states to 66289 states and 82341 transitions. [2024-12-02 08:59:22,267 INFO L78 Accepts]: Start accepts. Automaton has 66289 states and 82341 transitions. Word has length 92 [2024-12-02 08:59:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:22,267 INFO L471 AbstractCegarLoop]: Abstraction has 66289 states and 82341 transitions. [2024-12-02 08:59:22,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 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) [2024-12-02 08:59:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 66289 states and 82341 transitions. [2024-12-02 08:59:22,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 08:59:22,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:22,269 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:59:22,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:59:22,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 08:59:22,469 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:22,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash 640907252, now seen corresponding path program 1 times [2024-12-02 08:59:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:22,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277118456] [2024-12-02 08:59:22,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:59:24,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:24,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277118456] [2024-12-02 08:59:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277118456] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:59:24,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096682930] [2024-12-02 08:59:24,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:24,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:59:24,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:59:24,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:59:24,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:59:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:25,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-12-02 08:59:25,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:59:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:59:32,227 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:59:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:59:41,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096682930] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:59:41,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:59:41,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 29] total 87 [2024-12-02 08:59:41,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994649896] [2024-12-02 08:59:41,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:59:41,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-12-02 08:59:41,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:41,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-12-02 08:59:41,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=6524, Unknown=0, NotChecked=0, Total=7482 [2024-12-02 08:59:41,146 INFO L87 Difference]: Start difference. First operand 66289 states and 82341 transitions. Second operand has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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) [2024-12-02 09:01:51,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:51,267 INFO L93 Difference]: Finished difference Result 183979 states and 226146 transitions. [2024-12-02 09:01:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2024-12-02 09:01:51,268 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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) Word has length 93 [2024-12-02 09:01:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:51,383 INFO L225 Difference]: With dead ends: 183979 [2024-12-02 09:01:51,384 INFO L226 Difference]: Without dead ends: 152932 [2024-12-02 09:01:51,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 392 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60576 ImplicationChecksByTransitivity, 113.5s TimeCoverageRelationStatistics Valid=21633, Invalid=133209, Unknown=0, NotChecked=0, Total=154842 [2024-12-02 09:01:51,421 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 40270 mSDsluCounter, 33040 mSDsCounter, 0 mSdLazyCounter, 13091 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40270 SdHoareTripleChecker+Valid, 34709 SdHoareTripleChecker+Invalid, 13417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 13091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:51,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40270 Valid, 34709 Invalid, 13417 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [326 Valid, 13091 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2024-12-02 09:01:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152932 states. [2024-12-02 09:01:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152932 to 52271. [2024-12-02 09:01:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52271 states, 52269 states have (on average 1.2525588781113088) internal successors, (65470), 52270 states have internal predecessors, (65470), 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) [2024-12-02 09:01:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52271 states to 52271 states and 65470 transitions. [2024-12-02 09:01:55,509 INFO L78 Accepts]: Start accepts. Automaton has 52271 states and 65470 transitions. Word has length 93 [2024-12-02 09:01:55,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:55,509 INFO L471 AbstractCegarLoop]: Abstraction has 52271 states and 65470 transitions. [2024-12-02 09:01:55,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 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) [2024-12-02 09:01:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 52271 states and 65470 transitions. [2024-12-02 09:01:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 09:01:55,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:55,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:55,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 09:01:55,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:55,715 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:55,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash -512580915, now seen corresponding path program 1 times [2024-12-02 09:01:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:55,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83267825] [2024-12-02 09:01:55,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:55,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:01:55,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83267825] [2024-12-02 09:01:55,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83267825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:55,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:55,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:01:55,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757916405] [2024-12-02 09:01:55,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:55,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:55,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:55,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:55,882 INFO L87 Difference]: Start difference. First operand 52271 states and 65470 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-12-02 09:02:03,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:03,355 INFO L93 Difference]: Finished difference Result 56065 states and 71833 transitions. [2024-12-02 09:02:03,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:03,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) Word has length 138 [2024-12-02 09:02:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:03,396 INFO L225 Difference]: With dead ends: 56065 [2024-12-02 09:02:03,396 INFO L226 Difference]: Without dead ends: 53773 [2024-12-02 09:02:03,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:03,405 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 794 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:03,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 906 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 09:02:03,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53773 states. [2024-12-02 09:02:07,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53773 to 53022. [2024-12-02 09:02:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53022 states, 53020 states have (on average 1.2490192380233873) internal successors, (66223), 53021 states have internal predecessors, (66223), 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) [2024-12-02 09:02:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53022 states to 53022 states and 66223 transitions. [2024-12-02 09:02:07,185 INFO L78 Accepts]: Start accepts. Automaton has 53022 states and 66223 transitions. Word has length 138 [2024-12-02 09:02:07,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:07,185 INFO L471 AbstractCegarLoop]: Abstraction has 53022 states and 66223 transitions. [2024-12-02 09:02:07,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-12-02 09:02:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 53022 states and 66223 transitions. [2024-12-02 09:02:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 09:02:07,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:07,190 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:07,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 09:02:07,190 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:07,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:07,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1662991261, now seen corresponding path program 1 times [2024-12-02 09:02:07,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:07,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648411515] [2024-12-02 09:02:07,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:07,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 46 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:07,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648411515] [2024-12-02 09:02:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648411515] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767149179] [2024-12-02 09:02:07,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:07,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:07,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:07,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:07,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 09:02:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:07,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 09:02:07,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 72 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:09,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 63 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:10,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767149179] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:10,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:10,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 36 [2024-12-02 09:02:10,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002598766] [2024-12-02 09:02:10,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:10,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 09:02:10,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:10,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 09:02:10,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1121, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 09:02:10,544 INFO L87 Difference]: Start difference. First operand 53022 states and 66223 transitions. Second operand has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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) [2024-12-02 09:02:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:23,944 INFO L93 Difference]: Finished difference Result 204556 states and 253356 transitions. [2024-12-02 09:02:23,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 09:02:23,945 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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) Word has length 145 [2024-12-02 09:02:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:24,069 INFO L225 Difference]: With dead ends: 204556 [2024-12-02 09:02:24,070 INFO L226 Difference]: Without dead ends: 156958 [2024-12-02 09:02:24,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1249, Invalid=4913, Unknown=0, NotChecked=0, Total=6162 [2024-12-02 09:02:24,099 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 18164 mSDsluCounter, 20165 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18164 SdHoareTripleChecker+Valid, 21686 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:24,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18164 Valid, 21686 Invalid, 2121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 09:02:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156958 states. [2024-12-02 09:02:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156958 to 98130. [2024-12-02 09:02:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98130 states, 98128 states have (on average 1.2291293005054622) internal successors, (120612), 98129 states have internal predecessors, (120612), 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) [2024-12-02 09:02:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98130 states to 98130 states and 120612 transitions. [2024-12-02 09:02:31,741 INFO L78 Accepts]: Start accepts. Automaton has 98130 states and 120612 transitions. Word has length 145 [2024-12-02 09:02:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:31,742 INFO L471 AbstractCegarLoop]: Abstraction has 98130 states and 120612 transitions. [2024-12-02 09:02:31,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 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) [2024-12-02 09:02:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 98130 states and 120612 transitions. [2024-12-02 09:02:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 09:02:31,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:31,748 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:31,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 09:02:31,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 09:02:31,949 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:31,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1926080977, now seen corresponding path program 1 times [2024-12-02 09:02:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266419834] [2024-12-02 09:02:31,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 33 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:32,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:32,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266419834] [2024-12-02 09:02:32,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266419834] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:32,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652084912] [2024-12-02 09:02:32,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:32,561 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:32,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 09:02:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:32,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 09:02:32,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 24 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:33,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 17 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:36,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652084912] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:36,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:36,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 37 [2024-12-02 09:02:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356306968] [2024-12-02 09:02:36,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:36,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 09:02:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:36,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 09:02:36,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 09:02:36,373 INFO L87 Difference]: Start difference. First operand 98130 states and 120612 transitions. Second operand has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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) [2024-12-02 09:02:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:53,104 INFO L93 Difference]: Finished difference Result 230489 states and 283538 transitions. [2024-12-02 09:02:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-12-02 09:02:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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) Word has length 145 [2024-12-02 09:02:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:53,225 INFO L225 Difference]: With dead ends: 230489 [2024-12-02 09:02:53,225 INFO L226 Difference]: Without dead ends: 156585 [2024-12-02 09:02:53,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3064 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2075, Invalid=9915, Unknown=0, NotChecked=0, Total=11990 [2024-12-02 09:02:53,257 INFO L435 NwaCegarLoop]: 1528 mSDtfsCounter, 18109 mSDsluCounter, 21675 mSDsCounter, 0 mSdLazyCounter, 2664 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18109 SdHoareTripleChecker+Valid, 23203 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:53,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18109 Valid, 23203 Invalid, 2746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 2664 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 09:02:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156585 states. [2024-12-02 09:02:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156585 to 64782. [2024-12-02 09:02:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64782 states, 64780 states have (on average 1.2294535350416795) internal successors, (79644), 64781 states have internal predecessors, (79644), 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) [2024-12-02 09:02:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64782 states to 64782 states and 79644 transitions. [2024-12-02 09:02:59,339 INFO L78 Accepts]: Start accepts. Automaton has 64782 states and 79644 transitions. Word has length 145 [2024-12-02 09:02:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:59,339 INFO L471 AbstractCegarLoop]: Abstraction has 64782 states and 79644 transitions. [2024-12-02 09:02:59,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.81081081081081) internal successors, (400), 37 states have internal predecessors, (400), 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) [2024-12-02 09:02:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 64782 states and 79644 transitions. [2024-12-02 09:02:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 09:02:59,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:59,344 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:59,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 09:02:59,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 09:02:59,545 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:59,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash 384846237, now seen corresponding path program 1 times [2024-12-02 09:02:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547560197] [2024-12-02 09:02:59,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:59,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 38 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:00,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:00,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547560197] [2024-12-02 09:03:00,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547560197] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:00,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977854361] [2024-12-02 09:03:00,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:00,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:00,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:00,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 09:03:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:00,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 09:03:00,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 49 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:01,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 71 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:03,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977854361] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:03,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:03,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 12] total 42 [2024-12-02 09:03:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141041468] [2024-12-02 09:03:03,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:03,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 09:03:03,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:03,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 09:03:03,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1576, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 09:03:03,283 INFO L87 Difference]: Start difference. First operand 64782 states and 79644 transitions. Second operand has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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) [2024-12-02 09:03:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:29,242 INFO L93 Difference]: Finished difference Result 184096 states and 228584 transitions. [2024-12-02 09:03:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-12-02 09:03:29,242 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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) Word has length 145 [2024-12-02 09:03:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:29,348 INFO L225 Difference]: With dead ends: 184096 [2024-12-02 09:03:29,348 INFO L226 Difference]: Without dead ends: 137422 [2024-12-02 09:03:29,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8699 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=3486, Invalid=24236, Unknown=0, NotChecked=0, Total=27722 [2024-12-02 09:03:29,372 INFO L435 NwaCegarLoop]: 1722 mSDtfsCounter, 20885 mSDsluCounter, 27982 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20885 SdHoareTripleChecker+Valid, 29704 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:29,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20885 Valid, 29704 Invalid, 6064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 5982 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 09:03:29,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137422 states. [2024-12-02 09:03:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137422 to 81435. [2024-12-02 09:03:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81435 states, 81433 states have (on average 1.2212370906143701) internal successors, (99449), 81434 states have internal predecessors, (99449), 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) [2024-12-02 09:03:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81435 states to 81435 states and 99449 transitions. [2024-12-02 09:03:37,587 INFO L78 Accepts]: Start accepts. Automaton has 81435 states and 99449 transitions. Word has length 145 [2024-12-02 09:03:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:37,587 INFO L471 AbstractCegarLoop]: Abstraction has 81435 states and 99449 transitions. [2024-12-02 09:03:37,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 9.404761904761905) internal successors, (395), 42 states have internal predecessors, (395), 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) [2024-12-02 09:03:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 81435 states and 99449 transitions. [2024-12-02 09:03:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 09:03:37,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:37,593 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:37,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 09:03:37,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 09:03:37,794 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:37,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2070208138, now seen corresponding path program 1 times [2024-12-02 09:03:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:37,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046312542] [2024-12-02 09:03:37,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:38,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:38,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046312542] [2024-12-02 09:03:38,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046312542] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:38,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543547694] [2024-12-02 09:03:38,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:38,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:38,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:38,536 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:38,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 09:03:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:38,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 09:03:38,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 60 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:39,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 52 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:41,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543547694] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:41,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:41,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2024-12-02 09:03:41,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790917556] [2024-12-02 09:03:41,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:41,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 09:03:41,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:41,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 09:03:41,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2024-12-02 09:03:41,560 INFO L87 Difference]: Start difference. First operand 81435 states and 99449 transitions. Second operand has 30 states, 30 states have (on average 11.666666666666666) internal successors, (350), 29 states have internal predecessors, (350), 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) [2024-12-02 09:03:50,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:50,612 INFO L93 Difference]: Finished difference Result 121668 states and 148607 transitions. [2024-12-02 09:03:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:03:50,613 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.666666666666666) internal successors, (350), 29 states have internal predecessors, (350), 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) Word has length 146 [2024-12-02 09:03:50,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:50,676 INFO L225 Difference]: With dead ends: 121668 [2024-12-02 09:03:50,676 INFO L226 Difference]: Without dead ends: 85900 [2024-12-02 09:03:50,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=420, Invalid=1472, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 09:03:50,695 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 17424 mSDsluCounter, 12348 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17424 SdHoareTripleChecker+Valid, 13856 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:50,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17424 Valid, 13856 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:03:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85900 states. [2024-12-02 09:03:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85900 to 62131. [2024-12-02 09:03:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62131 states, 62129 states have (on average 1.2133464243750904) internal successors, (75384), 62130 states have internal predecessors, (75384), 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) [2024-12-02 09:03:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62131 states to 62131 states and 75384 transitions. [2024-12-02 09:03:57,778 INFO L78 Accepts]: Start accepts. Automaton has 62131 states and 75384 transitions. Word has length 146 [2024-12-02 09:03:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:57,779 INFO L471 AbstractCegarLoop]: Abstraction has 62131 states and 75384 transitions. [2024-12-02 09:03:57,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.666666666666666) internal successors, (350), 29 states have internal predecessors, (350), 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) [2024-12-02 09:03:57,779 INFO L276 IsEmpty]: Start isEmpty. Operand 62131 states and 75384 transitions. [2024-12-02 09:03:57,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 09:03:57,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:57,786 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:57,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 09:03:57,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 09:03:57,986 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:57,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:57,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1442516470, now seen corresponding path program 1 times [2024-12-02 09:03:57,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:57,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208291463] [2024-12-02 09:03:57,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:57,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:59,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:59,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208291463] [2024-12-02 09:03:59,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208291463] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:59,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983561405] [2024-12-02 09:03:59,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:59,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:59,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:59,967 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:59,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 09:04:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:00,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 09:04:00,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 36 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:01,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 37 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983561405] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:04:02,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:04:02,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 13, 12] total 46 [2024-12-02 09:04:02,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77917813] [2024-12-02 09:04:02,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:04:02,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-02 09:04:02,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:02,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-02 09:04:02,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1917, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 09:04:02,511 INFO L87 Difference]: Start difference. First operand 62131 states and 75384 transitions. Second operand has 46 states, 46 states have (on average 8.91304347826087) internal successors, (410), 46 states have internal predecessors, (410), 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) [2024-12-02 09:04:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:21,130 INFO L93 Difference]: Finished difference Result 125424 states and 152207 transitions. [2024-12-02 09:04:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-12-02 09:04:21,131 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 8.91304347826087) internal successors, (410), 46 states have internal predecessors, (410), 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) Word has length 146 [2024-12-02 09:04:21,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:21,200 INFO L225 Difference]: With dead ends: 125424 [2024-12-02 09:04:21,200 INFO L226 Difference]: Without dead ends: 93089 [2024-12-02 09:04:21,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2782 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1878, Invalid=10332, Unknown=0, NotChecked=0, Total=12210 [2024-12-02 09:04:21,221 INFO L435 NwaCegarLoop]: 1525 mSDtfsCounter, 25917 mSDsluCounter, 22386 mSDsCounter, 0 mSdLazyCounter, 3519 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25917 SdHoareTripleChecker+Valid, 23911 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:21,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25917 Valid, 23911 Invalid, 3595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 3519 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 09:04:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93089 states. [2024-12-02 09:04:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93089 to 70901. [2024-12-02 09:04:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70901 states, 70899 states have (on average 1.2030353037419428) internal successors, (85294), 70900 states have internal predecessors, (85294), 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) [2024-12-02 09:04:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70901 states to 70901 states and 85294 transitions. [2024-12-02 09:04:28,921 INFO L78 Accepts]: Start accepts. Automaton has 70901 states and 85294 transitions. Word has length 146 [2024-12-02 09:04:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:28,922 INFO L471 AbstractCegarLoop]: Abstraction has 70901 states and 85294 transitions. [2024-12-02 09:04:28,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 8.91304347826087) internal successors, (410), 46 states have internal predecessors, (410), 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) [2024-12-02 09:04:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 70901 states and 85294 transitions. [2024-12-02 09:04:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 09:04:28,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:28,926 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:28,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 09:04:29,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 09:04:29,128 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:29,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 651758054, now seen corresponding path program 1 times [2024-12-02 09:04:29,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:29,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642009059] [2024-12-02 09:04:29,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:29,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 24 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:30,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:30,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642009059] [2024-12-02 09:04:30,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642009059] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:30,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624507077] [2024-12-02 09:04:30,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:30,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:30,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:04:30,191 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:04:30,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 09:04:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:30,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 09:04:30,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:31,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:33,678 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 16 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:33,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624507077] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:04:33,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:04:33,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 40 [2024-12-02 09:04:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378429080] [2024-12-02 09:04:33,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:04:33,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-12-02 09:04:33,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:33,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-12-02 09:04:33,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1505, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 09:04:33,680 INFO L87 Difference]: Start difference. First operand 70901 states and 85294 transitions. Second operand has 41 states, 41 states have (on average 10.292682926829269) internal successors, (422), 40 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) [2024-12-02 09:04:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:47,815 INFO L93 Difference]: Finished difference Result 128424 states and 154252 transitions. [2024-12-02 09:04:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-12-02 09:04:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 10.292682926829269) internal successors, (422), 40 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) Word has length 146 [2024-12-02 09:04:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:47,883 INFO L225 Difference]: With dead ends: 128424 [2024-12-02 09:04:47,883 INFO L226 Difference]: Without dead ends: 84118 [2024-12-02 09:04:47,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1990 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1240, Invalid=7502, Unknown=0, NotChecked=0, Total=8742 [2024-12-02 09:04:47,909 INFO L435 NwaCegarLoop]: 1501 mSDtfsCounter, 32558 mSDsluCounter, 15664 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32558 SdHoareTripleChecker+Valid, 17165 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:47,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32558 Valid, 17165 Invalid, 2860 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 09:04:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84118 states. [2024-12-02 09:04:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84118 to 49236. [2024-12-02 09:04:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49236 states, 49234 states have (on average 1.1982369906974855) internal successors, (58994), 49235 states have internal predecessors, (58994), 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) [2024-12-02 09:04:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49236 states to 49236 states and 58994 transitions. [2024-12-02 09:04:54,176 INFO L78 Accepts]: Start accepts. Automaton has 49236 states and 58994 transitions. Word has length 146 [2024-12-02 09:04:54,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:54,176 INFO L471 AbstractCegarLoop]: Abstraction has 49236 states and 58994 transitions. [2024-12-02 09:04:54,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.292682926829269) internal successors, (422), 40 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) [2024-12-02 09:04:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 49236 states and 58994 transitions. [2024-12-02 09:04:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 09:04:54,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:54,180 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:54,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 09:04:54,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 09:04:54,380 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:54,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:54,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2098682565, now seen corresponding path program 1 times [2024-12-02 09:04:54,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:54,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104531298] [2024-12-02 09:04:54,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 26 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:54,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104531298] [2024-12-02 09:04:54,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104531298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76317798] [2024-12-02 09:04:54,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:54,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:04:54,912 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:04:54,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 09:04:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:55,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 09:04:55,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:55,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 26 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:57,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76317798] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:04:57,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:04:57,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2024-12-02 09:04:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752929228] [2024-12-02 09:04:57,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:04:57,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 09:04:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:57,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 09:04:57,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2024-12-02 09:04:57,850 INFO L87 Difference]: Start difference. First operand 49236 states and 58994 transitions. Second operand has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 26 states have internal predecessors, (326), 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) [2024-12-02 09:05:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:04,338 INFO L93 Difference]: Finished difference Result 73865 states and 88168 transitions. [2024-12-02 09:05:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 09:05:04,338 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 26 states have internal predecessors, (326), 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) Word has length 147 [2024-12-02 09:05:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:05:04,376 INFO L225 Difference]: With dead ends: 73865 [2024-12-02 09:05:04,376 INFO L226 Difference]: Without dead ends: 52640 [2024-12-02 09:05:04,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 09:05:04,388 INFO L435 NwaCegarLoop]: 1504 mSDtfsCounter, 16065 mSDsluCounter, 10671 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16065 SdHoareTripleChecker+Valid, 12175 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:05:04,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16065 Valid, 12175 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:05:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52640 states. [2024-12-02 09:05:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52640 to 49216. [2024-12-02 09:05:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49216 states, 49214 states have (on average 1.192059170154834) internal successors, (58666), 49215 states have internal predecessors, (58666), 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) [2024-12-02 09:05:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49216 states to 49216 states and 58666 transitions. [2024-12-02 09:05:10,542 INFO L78 Accepts]: Start accepts. Automaton has 49216 states and 58666 transitions. Word has length 147 [2024-12-02 09:05:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:10,543 INFO L471 AbstractCegarLoop]: Abstraction has 49216 states and 58666 transitions. [2024-12-02 09:05:10,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.074074074074074) internal successors, (326), 26 states have internal predecessors, (326), 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) [2024-12-02 09:05:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 49216 states and 58666 transitions. [2024-12-02 09:05:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 09:05:10,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:10,546 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:05:10,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 09:05:10,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 09:05:10,747 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:10,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1634574626, now seen corresponding path program 1 times [2024-12-02 09:05:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:05:10,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855067806] [2024-12-02 09:05:10,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:05:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:05:12,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:05:12,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855067806] [2024-12-02 09:05:12,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855067806] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:05:12,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664314105] [2024-12-02 09:05:12,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:12,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:05:12,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:05:12,972 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:05:12,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331e7877-6777-4045-a259-720cdd7703b0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 09:05:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:13,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 09:05:13,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:05:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 26 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:05:15,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:05:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 26 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:05:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664314105] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:05:20,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:05:20,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 17, 18] total 64 [2024-12-02 09:05:20,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073072158] [2024-12-02 09:05:20,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:05:20,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-12-02 09:05:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:05:20,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-12-02 09:05:20,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=3794, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 09:05:20,185 INFO L87 Difference]: Start difference. First operand 49216 states and 58666 transitions. Second operand has 64 states, 64 states have (on average 6.625) internal successors, (424), 64 states have internal predecessors, (424), 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)